Machine Bolts

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Machine bolts are used to fasten two pieces of wood or metals in manufacturing & construction applications. Raptor Supplies offers machine bolts from brands like Proto, Read More

StyleModelBolt SizeOverall LengthThread Size
A50X175HEBBOX1/2"1.75"1/2-13
RFQ
A50X225HEBBOX1/2"2.25"1/2-13
RFQ
A50X100HEBBOX1/2"1"1/2-13
RFQ
A50X125HEBBOX1/2"1.25"1/2-13
RFQ
A50X150HEBBOX1/2"1-1/2"1/2-13
RFQ
A50X200HEBBOX1/2"2"1/2-13
RFQ
A50X250HEBBOX1/2"2.50"1/2-13
RFQ
A50X300HEBBOX1/2"3"1/2-13
RFQ
A50X75HEBBOX1/2"3/4"1/2-13
RFQ
A38X100HEBBOX3/8"1"3/8-16"
RFQ
A38X150HEBBOX3/8"1-1/2"3/8-16"
RFQ
A38X200HEBBOX3/8"2"3/8-16"
RFQ
FABORY -

Bolts

StyleModelDia./Thread SizeHead Dia.Head HeightPrice (inc. GST)
AB08360.025.00751/4"-200.969"0.078"A$ 349.89
AB08360.025.01001/4"-200.969"0.078"A$ 679.47
AB08360.025.01251/4"-200.969"0.078"A$ 318.30
AB08360.025.01501/4"-200.969"0.078"A$ 539.68
AB08360.025.01751/4"-200.969"0.078"A$ 2914.23
AB08360.025.03001/4"-200.969"0.078"A$ 666.86
AB08360.037.02003/8"-161.312"0.125"A$ 406.05
AB08360.031.01255/16"-181.188"0.094"A$ 423.72
AB08360.031.01505/16"-181.188"0.094"A$ 404.98
AB08360.031.01755/16"-181.188"0.094"A$ 398.79
AB08360.031.02505/16"-181.188"0.094"A$ 487.76
AB08360.031.03005/16"-181.188"0.094"A$ 860.38
L9 -

Hex Head Cap Screws

StyleModelDia./Thread SizeFastener LengthHead HeightHead WidthLengthThread StyleThread TypePrice (inc. GST)
A4409531 1/2"-651 1/32"2.25"5 "Partially ThreadedUNC (Coarse)A$ 4115.20
RFQ
B4409581 1/2"-6121 1/32"2.25"12 "Partially ThreadedUNC (Coarse)A$ 3686.40
RFQ
A4409521 1/2"-641 1/32"2.25"4 "Fully ThreadedUNC (Coarse)A$ 3494.40
RFQ
A4409541 1/2"-661 1/32"2.25"6 "Partially ThreadedUNC (Coarse)A$ 4204.80
RFQ
B4409551 1/2"-671 1/32"2.25"7 "Partially ThreadedUNC (Coarse)A$ 3430.40
RFQ
B4409561 1/2"-681 1/32"2.25"8 "Partially ThreadedUNC (Coarse)A$ 4076.80
RFQ
B4409571 1/2"-6101 1/32"2.25"10 "Partially ThreadedUNC (Coarse)A$ 4812.80
RFQ
C4409721 1/2"-12121 1/32"2.25"12 "Partially ThreadedUNC (Coarse)A$ 3974.40
RFQ
C4409681 1/2"-12101 1/32"2.25"10 "Partially ThreadedUNF (Fine)A$ 5152.00
RFQ
D4409641 1/2"-1281 1/32"2.25"8 "Partially ThreadedUNF (Fine)A$ 3552.00
RFQ
C4409621 1/2"-1271 1/32"2.25"7 "Partially ThreadedUNF (Fine)A$ 3001.60
RFQ
E4409611 1/2"-1261 1/32"2.25"6 "Partially ThreadedUNF (Fine)A$ 4384.00
RFQ
E4409591 1/2"-1241 1/32"2.25"4 "Fully ThreadedUNF (Fine)A$ 4070.40
RFQ
F4409271 1/4"-73 1/255/64"1.875"3 1/2"Fully ThreadedUNC (Coarse)A$ 1619.20
RFQ
A4409301 1/4"-7555/64"1.875"5 "Partially ThreadedUNC (Coarse)A$ 1568.00
RFQ
A4409281 1/4"-7455/64"1.875"4 "Partially ThreadedUNC (Coarse)A$ 1779.20
RFQ
B4409341 1/4"-7855/64"1.875"8 "Partially ThreadedUNC (Coarse)A$ 2387.20
RFQ
B4409351 1/4"-7955/64"1.875"9 "Partially ThreadedUNC (Coarse)A$ 2643.20
RFQ
B4409381 1/4"-71255/64"1.875"12 "Partially ThreadedUNC (Coarse)A$ 4172.80
RFQ
A4409291 1/4"-74 1/255/64"1.875"4 1/2"Partially ThreadedUNC (Coarse)A$ 1932.80
RFQ
B4409371 1/4"-71155/64"1.875"11 "Partially ThreadedUNC (Coarse)A$ 3622.40
RFQ
B4409331 1/4"-7755/64"1.875"7 "Partially ThreadedUNC (Coarse)A$ 2144.00
RFQ
A4409321 1/4"-7655/64"1.875"6 "Partially ThreadedUNC (Coarse)A$ 1894.40
RFQ
B4409361 1/4"-71055/64"1.875"10 "Partially ThreadedUNC (Coarse)A$ 2892.80
RFQ
F4409261 1/4"-7355/64"1.875"3 "Fully ThreadedUNC (Coarse)A$ 2176.00
RFQ
ACCURATE MANUFACTURED PRODUCTS GROUP -

Hex Head Cap Screws

StyleModelDia./Thread SizeFastener LengthHead HeightHead WidthLengthThread StylePrice (inc. GST)
AZS616M6X16M6x1164 mm10 mm16mmFully ThreadedA$ 18.23
AZS616M6X25M6x1254 mm10 mm25mmPartially ThreadedA$ 21.47
AZS616M6X40M6x1404 mm10 mm40mmPartially ThreadedA$ 27.16
AZS616M6X10M6x1104 mm10 mm10mmFully ThreadedA$ 16.99
AZS616M6X12M6x1124 mm10 mm12mmFully ThreadedA$ 16.90
AZS616M6X30M6x1304 mm10 mm30mmPartially ThreadedA$ 24.15
AZS616M6X20M6x1204 mm10 mm20mmPartially ThreadedA$ 20.42
AZS616M8X40M8x1.25405 mm13 mm40mmPartially ThreadedA$ 36.18
AZS616M8X35M8x1.25355 mm13 mm35mmPartially ThreadedA$ 33.30
AZS616M8X30M8x1.25305 mm13 mm30mmPartially ThreadedA$ 26.15
AZS616M8X25M8x1.25255 mm13 mm25mmPartially ThreadedA$ 24.37
AZS616M8X20M8x1.25205 mm13 mm20mmPartially ThreadedA$ 22.41
AZS616M8X16M8x1.25165 mm13 mm16mmFully ThreadedA$ 21.30
AZS616M8X50M8x1.25505 mm13 mm50mmPartially ThreadedA$ 49.32
AZS616M10X30M10x1.5306 mm16 mm30mmPartially ThreadedA$ 56.32
AZS616M10X50M10x1.5506 mm16 mm50mmPartially ThreadedA$ 83.37
AZS616M10X40M10x1.5406 mm16 mm40mmPartially ThreadedA$ 79.14
AZS616M10X35M10x1.5356 mm16 mm35mmPartially ThreadedA$ 76.42
AZS616M10X25M10x1.5256 mm16 mm25mmPartially ThreadedA$ 49.32
AZS616M12X50M12x1.75508 mm18 mm50mmPartially ThreadedA$ 201.17
AZS616M12X40M12x1.75408 mm18 mm40mmPartially ThreadedA$ 117.59
AZS616M12X35M12x1.75358 mm18 mm35mmPartially ThreadedA$ 110.96
AZS616M12X30M12x1.75308 mm18 mm30mmPartially ThreadedA$ 92.79
LISLE -

Bolts

StyleModelPrice (inc. GST)
ALS/13790A$ 69.89
RFQ
ALS/34410A$ 9.06
RFQ
ALS/35660A$ 1.25
RFQ
ALS/45310A$ 9.98
RFQ
ALS/45590A$ 1.50
RFQ
ALS/45610A$ 1.76
RFQ
ALS/45620A$ 1.50
RFQ
ALS/45640A$ 1.50
RFQ
ALS/56420A$ 8.22
RFQ
ALS/57210A$ 3.74
RFQ
ALS/62350A$ 24.54
RFQ
ALS/12890A$ 1.66
RFQ
BLS/19250A$ 81.44
RFQ
ALS/38290A$ 3.58
RFQ
ALS/45540A$ 1.57
RFQ
ALS/71410A$ 5.73
RFQ
FABORY -

Square Head Bolts

StyleModelDia./Thread SizeFastener LengthHead HeightHead WidthLengthThread LengthPrice (inc. GST)
AM01030.060.0016M6x1166 mm6 mm16mm16mmA$ 110.18
BM01030.060.0030M6x1306 mm6 mm30mm30mmA$ 145.92
BM01030.060.0040M6x1406 mm6 mm40mm40mmA$ 164.31
AM01030.060.0020M6x1206 mm6 mm20mm20mmA$ 134.07
CM01030.060.0050M6x1506 mm6 mm50mm50mmA$ 219.82
CL01030.080.0060M8x1.25608 mm8 mm60mm60mmA$ 2130.63
BM01030.080.0035M8x1.25358 mm8 mm35mm35mmA$ 250.35
CL01030.080.0050M8x1.25508 mm8 mm50mm50mmA$ 3256.75
CM01030.080.0060M8x1.25608 mm8 mm60mm60mmA$ 346.80
CM01030.080.0050M8x1.25508 mm8 mm50mm50mmA$ 575.93
AM01030.080.0025M8x1.25258 mm8 mm25mm25mmA$ 203.91
BM01030.080.0030M8x1.25308 mm8 mm30mm30mmA$ 232.65
BM01030.080.0040M8x1.25408 mm8 mm40mm40mmA$ 280.47
AM01030.080.0020M8x1.25208 mm8 mm20mm20mmA$ 175.22
AM01030.080.0016M8x1.25168 mm8 mm16mm16mmA$ 160.28
DM01030.100.0030M10x1.53010 mm10 mm30mm30mmA$ 180.85
EM01030.100.0020M10x1.52010 mm10 mm20mm20mmA$ 156.13
DM01030.100.0025M10x1.52510 mm10 mm25mm25mmA$ 168.12
FM01030.100.0060M10x1.56010 mm10 mm60mm60mmA$ 282.73
DM01030.100.0035M10x1.53510 mm10 mm35mm35mmA$ 324.95
DM01030.100.0040M10x1.54010 mm10 mm40mm40mmA$ 264.29
FM01030.100.0050M10x1.55010 mm10 mm50mm50mmA$ 238.11
GM01030.100.0080M10x1.58010 mm10 mm80mm80mmA$ 339.74
GM01030.100.0070M10x1.57010 mm10 mm70mm70mmA$ 312.15
EM01030.100.0016M10x1.51610 mm10 mm16mm16mmA$ 139.47
FABORY -

Elevator Bolts

StyleModelDia./Thread SizeFastener FinishFastener LengthFinishHead Dia.Head HeightLengthRockwell HardnessPrice (inc. GST)
AB08360.025.02001/4"-20Plain2Plain0.969"0.078"2 "-A$ 687.41
BU08361.025.02001/4"-20Zinc Plated2Zinc Plated0.969"0.078"2 "Max B100A$ 81.72
AB08360.025.02501/4"-20Plain2 1/2Plain0.969"0.078"2 1/2"-A$ 312.62
AU08360.025.03001/4"-20Plain3Plain0.969"0.078"3 "Max B100A$ 124.31
AU08360.025.02501/4"-20Plain2 1/2Plain0.969"0.078"2 1/2"Max B100A$ 109.22
AU08360.025.02251/4"-20Plain2 1/4Plain0.969"0.078"2 1/4"Max B100A$ 97.29
AU08360.025.02001/4"-20Plain2Plain0.969"0.078"2 "Max B100A$ 91.07
AU08360.025.01751/4"-20Plain1 3/4Plain0.969"0.078"1 3/4"Max B100A$ 114.93
CU08360.025.01501/4"-20Plain1 1/2Plain0.969"0.078"1 1/2"Max B100A$ 86.26
CU08360.025.01251/4"-20Plain1 1/4Plain0.969"0.078"1 1/4"Max B100A$ 78.71
CU08360.025.01001/4"-20Plain1Plain0.969"0.078"1 "Max B100A$ 70.81
CU08360.025.00751/4"-20Plain3/4Plain0.969"0.078"3/4"Max B100A$ 68.66
DU08361.025.00751/4"-20Zinc Plated3/4Zinc Plated0.969"0.078"3/4"Max B100A$ 55.64
DU08361.025.01001/4"-20Zinc Plated1Zinc Plated0.969"0.078"1 "B69 to B100A$ 61.62
DU08361.025.01251/4"-20Zinc Plated1 1/4Zinc Plated0.969"0.078"1 1/4"Max B100A$ 78.73
BU08361.025.01751/4"-20Zinc Plated1 3/4Zinc Plated0.969"0.078"1 3/4"Max B100A$ 77.46
DU08361.025.01501/4"-20Zinc Plated1 1/2Zinc Plated0.969"0.078"1 1/2"Max B100A$ 71.93
BU08361.025.02501/4"-20Zinc Plated2 1/2Zinc Plated0.969"0.078"2 1/2"Max B100A$ 116.36
BB08361.025.02001/4"-20Zinc Plated2Zinc Plated0.969"0.078"2 "-A$ 694.12
DB08361.025.01001/4"-20Zinc Plated1Zinc Plated0.969"0.078"1 "-A$ 790.50
BU08361.025.03001/4"-20Zinc Plated3Zinc Plated0.969"0.078"3 "Max B100A$ 135.74
DB08361.025.01501/4"-20Zinc Plated1 1/2Zinc Plated0.969"0.078"1 1/2"--
RFQ
BB08361.025.01751/4"-20Zinc Plated1 3/4Zinc Plated0.969"0.078"1 3/4"-A$ 656.15
DB08361.025.01251/4"-20Zinc Plated1 1/4Zinc Plated0.969"0.078"1 1/4"--
RFQ
BB08361.025.02501/4"-20Zinc Plated2 1/2Zinc Plated0.969"0.078"2 1/2"-A$ 594.24
FABORY -

Step Bolts

StyleModelDia./Thread SizeFastener LengthHead Dia.Head HeightLengthSquare HeightSquare WidthPrice (inc. GST)
AU08350.019.0150#10-241 1/20.625" to 0.656"0.094" to 0.114"1 1/2"0.094" to 0.125"0.185" to 0.199"A$ 289.77
BB08350.025.01001/4"-2010.813" to 0.844"0.125" to 0.145"1 "0.125" to 0.156"0.245" to 0.260"A$ 900.06
CB08350.025.01501/4"-201 1/20.813" to 0.844"0.125" to 0.145"1 1/2"0.125" to 0.156"0.245" to 0.260"A$ 754.95
AU08350.025.01501/4"-201 1/20.813" to 0.844"0.125" to 0.145"1 1/2"0.125" to 0.156"0.245" to 0.260"A$ 76.52
BU08350.025.01001/4"-2010.813" to 0.844"0.125" to 0.145"1 "0.125" to 0.156"0.245" to 0.260"A$ 67.78
DB08350.025.02001/4"-2020.813" to 0.844"0.125" to 0.145"2 "0.125" to 0.156"0.245" to 0.260"A$ 1052.81
AB08350.025.01251/4"-201 1/40.813" to 0.844"0.125" to 0.145"1 1/4"0.125" to 0.156"0.245" to 0.260"A$ 856.24
AU08350.025.01251/4"-201 1/40.813" to 0.844"0.125" to 0.145"1 1/4"0.125" to 0.156"0.245" to 0.260"A$ 72.98
DU08350.025.02001/4"-2020.813" to 0.844"0.125" to 0.145"2 "0.125" to 0.156"0.245" to 0.260"A$ 91.48
DU08350.037.03003/8"-1631.219" to 1.219"0.188" to 0.208"3 "0.188" to 0.219"0.368" to 0.388"A$ 176.14
EB08350.037.02003/8"-1621.219" to 1.219"0.188" to 0.208"2 "0.188" to 0.219"0.368" to 0.388"A$ 670.08
EU08350.037.02003/8"-1621.219" to 1.219"0.188" to 0.208"2 "0.188" to 0.219"0.368" to 0.388"A$ 168.24
FU08350.037.01253/8"-161 1/41.219" to 1.219"0.188" to 0.208"1 1/4"0.188" to 0.219"0.368" to 0.388"A$ 165.07
GB08350.037.01503/8"-161 1/21.219" to 1.219"0.188" to 0.208"1 1/2"0.188" to 0.219"0.368" to 0.388"A$ 979.44
FB08350.037.01253/8"-161 1/41.219" to 1.219"0.188" to 0.208"1 1/4"0.188" to 0.219"0.368" to 0.388"A$ 497.05
AU08350.037.01503/8"-161 1/21.219" to 1.219"0.188" to 0.208"1 1/2"0.188" to 0.219"0.368" to 0.388"A$ 200.01
DU08350.037.02503/8"-162 1/21.219" to 1.219"0.188" to 0.208"2 1/2"0.188" to 0.219"0.368" to 0.388"A$ 59.21
AU08350.031.01505/16"-181 1/21.000" to 1.031"0.156" to 0.176"1 1/2"0.156" to 0.187"0.307" to 0.324"A$ 96.88
HB08350.031.01005/16"-1811.000" to 1.031"0.156" to 0.176"1 "0.156" to 0.187"0.307" to 0.324"A$ 915.51
IB08350.031.02005/16"-1821.000" to 1.031"0.156" to 0.176"2 "0.156" to 0.187"0.307" to 0.324"A$ 382.45
JU08350.031.00755/16"-183/41.000" to 1.031"0.156" to 0.176"3/4"0.156" to 0.187"0.307" to 0.324"A$ 164.34
BU08350.031.01255/16"-181 1/41.000" to 1.031"0.156" to 0.176"1 1/4"0.156" to 0.187"0.307" to 0.324"A$ 102.45
IU08350.031.02005/16"-1821.000" to 1.031"0.156" to 0.176"2 "0.156" to 0.187"0.307" to 0.324"A$ 178.80
HU08350.031.01005/16"-1811.000" to 1.031"0.156" to 0.176"1 "0.156" to 0.187"0.307" to 0.324"A$ 97.11
FABORY -

Heavy Hex Bolts

StyleModelDia./Thread SizeFastener FinishFastener LengthFinishHead HeightHead WidthLengthRockwell HardnessPrice (inc. GST)
AB04000.125.04001 1/4"-7Plain4Plain27/32"2"4 "-A$ 362.67
AU04000.125.04001 1/4"-7Plain4Plain27/32"2"4 "Max B95A$ 156.70
AB04000.125.04501 1/4"-7Plain4 1/2Plain27/32"2"4 1/2"-A$ 387.68
BU04200.125.06001 1/4"-7Hot Dipped Galvanized6Hot Dipped Galvanized27/32"2"6 "Max B95A$ 281.66
CU04000.125.06001 1/4"-7Plain6Plain27/32"2"6 "Max B95A$ 207.78
AU04000.125.05001 1/4"-7Plain5Plain27/32"2"5 "Max B95A$ 181.50
AU04000.125.04501 1/4"-7Plain4 1/2Plain27/32"2"4 1/2"Max B95A$ 167.51
DU04200.112.05001 1/8"-7Hot Dipped Galvanized5Hot Dipped Galvanized3/4"1 13/16"5 "Max B95A$ 153.20
AB04000.112.05001 1/8"-7Plain5Plain3/4"1 13/16"5 "-A$ 487.30
AU04000.112.04501 1/8"-7Plain4 1/2Plain3/4"1 13/16"4 1/2"Max B95A$ 117.53
AU04000.112.05001 1/8"-7Plain5Plain3/4"1 13/16"5 "Max B95A$ 140.39
AB04000.112.04501 1/8"-7Plain4 1/2Plain3/4"1 13/16"4 1/2"-A$ 407.81
DB04200.112.05001 1/8"-7Hot Dipped Galvanized5Hot Dipped Galvanized3/4"1 13/16"5 "-A$ 459.71
AU04000.112.04001-1/8"-7Plain4Plain3/4"1-13/16"4"Max B95A$ 109.53
AB04000.100.03251-8Plain3 1/4Plain43/64"1 5/8"3 1/4"-A$ 347.86
AB04000.100.03501-8Plain3 1/2Plain43/64"1 5/8"3 1/2"-A$ 384.36
AB04000.100.04501-8Plain4 1/2Plain43/64"1 5/8"4 1/2"-A$ 288.22
EB04000.100.05001-8Plain5Plain43/64"1 5/8"5 "-A$ 349.18
EU04000.100.05001-8Plain5Plain43/64"1 5/8"5 "Max B95A$ 100.63
AU04000.100.03251-8Plain3 1/4Plain43/64"1 5/8"3 1/4"Max B95A$ 75.15
AU04000.100.03501-8Plain3 1/2Plain43/64"1 5/8"3 1/2"Max B95A$ 83.07
AU04000.100.04001-8Plain4Plain43/64"1 5/8"4 "Max B95A$ 110.72
CB04000.100.02251-8Plain2 1/4Plain43/64"1 5/8"2 1/4"-A$ 445.21
AU04000.100.04501-8Plain4 1/2Plain43/64"1 5/8"4 1/2"Max B95A$ 83.05
FB04000.100.03001-8Plain3Plain43/64"1 5/8"3 "-A$ 367.05
TEXAS PNEUMATIC TOOLS -

Handle Bolts

Texas Pneumatic Tools handle bolts are suitable for connecting parts in machines for manufacturing & automotive applications. Selected models feature plain & threaded combination stem for maximising reach.

StyleModelPrice (inc. GST)
A6925A$ 78.29
RFQ
B1651A$ 137.09
RFQ
C43160A$ 116.59
RFQ
C2492A$ 116.59
RFQ
DTX4B485-GR 8A$ 13.22
RFQ
ETX-37014A$ 117.94
RFQ
F131503002A$ 117.94
RFQ
B7515A$ 137.09
RFQ
D9245-9983-71A$ 13.22
RFQ
B43153A$ 137.09
RFQ
D68524155A$ 13.22
RFQ
D4244A$ 13.22
RFQ
DY10430190A$ 13.22
RFQ
GTX4B485-GR 5A$ 13.22
RFQ
HSI7515A$ 137.09
RFQ
F67014A$ 117.94
RFQ
D250027-485A$ 13.22
RFQ
THOMAS & BETTS -

Machine Bolts

StyleModelPrice (inc. GST)
ARCS10-10XA$ 7.25
RFQ
ARCS10-6FLXA$ 7.39
RFQ
APPROVED VENDOR -

Square Head Bolt Med Carbon 3/8-16, 50PK

ModelItemPrice (inc. GST)
SQHDG5FTZY38161AC6GJZA$ 247.93
APPROVED VENDOR -

Square Head Bolt Med Carbon 3/8-16, 50PK

ModelItemPrice (inc. GST)
SQHDG5FTZY3816112AC6GKAA$ 252.66
CRETORS -

Drive Bolt, Stainless Steel Mixer

ModelItemPrice (inc. GST)
1681CF2JJQA$ 175.04
PROTO -

Hex Socket Head Bolt

ModelItemPrice (inc. GST)
30R200053CH9ABRA$ 6.37
See Details
PROTO -

Hex Socket Head Bolt

ModelItemPrice (inc. GST)
30R200052CH9ABQA$ 11.36
See Details
LISLE -

Replacement Hook And Bolts

ModelItemPrice (inc. GST)
LS/49140CD8FYVA$ 26.53
See Details
LISLE -

Harmonic Balancer Body

ModelItemPrice (inc. GST)
LS/45510CD8FWDA$ 32.35
See Details
BURNDY -

Socket And Nut Assembly, 3-7/16 Inch Length

ModelItemPrice (inc. GST)
Z28NRCF4EEA-
RFQ
BURNDY -

Socket And Nut Assembly, 3-11/16 Inch Length

ModelItemPrice (inc. GST)
Z34NRCF4EDY-
RFQ
BURNDY -

Washer, 1/2 Inch Size, Stainless Steel

ModelItemPrice (inc. GST)
50X106BWSSCF4BBF-
RFQ
12

Machine Bolts

Machine bolts are used to fasten two pieces of wood or metals in manufacturing & construction applications. Raptor Supplies offers machine bolts from brands like Proto, Texas Pneumatic Tools, Thomas & Betts, Fabory, Vulcan Hart and more. They can be paired up with a threaded nut to be inserted into pre-drilled holes and provide tightening torque for joining materials together.

Features

  • A machine bolt is mainly divided into 2 parts: the head and the threaded portion.
  • The head is available in multiple drive styles for driving the screw in / out from the surface and sticking out of the surface.
  • The threaded portion starts just below the head for mating with a nut after installation.
  • This nut & bolt assembly creates compression force that holds two loose objects together and can be disassembled easily when required.
  • Selected bolt heads are equipped with a square neck for preventing accidental spinning / opening due to vibration.
  • Most machine bolts are fully threaded (but some are partially threaded) for preventing loosening, rotation, breakage & bending caused by friction-induced overheating or sideway forces.
  • These bolts can be fitted with a washer for increasing the surface area and distributing the attachment force applied.
  • Fabory machine bolts are available in hex head, square head, step & elevator bolt variants.
  • Texas Pneumatic Tools machine bolts have hexagonal / square heads for easy installation. Selected models may also have a long stem for fastening parts in industrial machinery.

Frequently Asked Questions

What is the difference between machine bolts and machine screws?

Machine bolts are often confused with machine screws. Generally, machine screws are smaller in size compared to machine bolts, but are fully threaded. Machine bolts have a flat tip, not a pointed / tapered tip as seen in screws. Screws are typically used in pre-tapped holes or driven into materials for creating their own threads when tightened. In contrast, machine bolts are often paired with nuts at the end of the bolt for torquing during installation. Nuts are not generally mated with screws.

What are the thread fits or classes in these machine bolts?

Thread fit grades or classes of a fastener indicate the degree of looseness or tightness of mating threads. Generally, the higher the class number, the tighter the fit of the attached components (like nuts). Lower thread fit grades / classes are suitable for applications requiring quick assembly & disassembly. Higher thread classes are ideal for close tolerances, safety & strength.

What do the strength grades / classes mean in machine bolts?

  • The grade or class of a machine bolt denotes its strength & compatibility with the respective nut.
  • Generally, the higher the grade, the higher the strength of the fastener.
  • SAE grades are used for Imperial-sized bolts. Bolts having the same SAE strength grade as a nut should be used together.
  • ISO classes are used for Metric-sized bolts. Bolts having the same first digit as a nut are meant to be used together.
  • ASTM grades are based on factors like strength, high pressures & high temperatures.

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