Hexagonal bolt Grade 8

SKU: TOG8

Hexagonal bolt Grade 8

Grade 8 hexagonal screws of different diameters and lengths to be used in connections.
Categorias:
$1.08$376.46
Tipo

Hexagonal screw

Grado

SAE J429 Gr 8

Material

Medium carbon steel, heat treatment.

Dimensiones

ASME B18.6.3

Acabado

Pavonado

Cabeza

Hexagonal

Cuerda

UNC Standard

Diámetro

1/4, 5/16, 3/8, 7/16, 1/2, 5/8, 3/4, 7/8, 1, 1 1/8, 1 1/4, 1 1/2

Largo

1/2, 3/4, 1, 1 1/4, 1 1/2, 1 3/4, 2, 2 1/2, 3, 3 1/2, 4, 4 1/2, 5, 5 1/2, 6, 6 1/2, 7, 7 1/2, 8, 9, 10, 11, 12

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SAE J429 Gr 8 or also Screw Grade 8 as it is known in the industry, are high strength screws that meet the mechanical and chemical requirements of alloy steel screws quenched and tempered through a heat treatment process that is intended for general engineering applications. These bolts are NOT used for steel structures and are not called structural bolts.

Hex Head Cap Screws (CAP) SAE J429 Gr 8

Description: Hex head screws are fasteners that feature a six-sided (hexagonal) head with a washer face on the bearing surface and a chamfered tip. They are commonly used in the construction and machinery assembly industry. These are one of the most common fasteners used today.
Screw dimensions
Screw dimensions
Diameter Body diameter (E) Width between faces (F) Width between corners (G) Head Height (H) Thread length (LT)
MAX MIN BASIC MAX MIN MAX MIN BASIC MAX MIN <= 6" >6"
1/4 .25 .2500 .2450 7/16 .438 .428 .505 .488 5/32 .163 .150 .750 1.000
5/16 .3125 .3125 .3065 1/2 .500 .489 .577 .557 13/64 .211 .195 .875 1.125
3/8 .3750 .3750 .3690 9/16 .562 .551 .650 .628 15/64 .243 .226 1.000 1.250
7/16 .4375 .4375 .4305 5/8 .625 .612 .722 .698 9/32 .291 .272 1.125 1.375
1/2 .5000 .5000 .4930 3/4 .750 .736 .866 .840 5/16 .323 .302 1.250 1.500
9/16 .5625 .5625 .5545 1 3/16 .812 .798 .938 .910 23/64 .371 .348 1.375 1.625
5/8 .6250 .6250 .6170 1 5/16 .938 .922 1.083 1.051 25/64 .403 .378 1.500 1.750
3/4 .75 .7500 .7410 1 1/8 1.125 1.100 1.299 1.254 15/32 .483 .455 1.750 2.000
7/8 .8750 .8750 .8660 1 5/16 1.312 1.285 1.516 1.465 35/64 .563 .531 2.000 2.250
1 1 1.0000 .99000 1 1/2 1.500 1.469 1.732 1.675 39/64 .627 .591 2.250 2.500
1 1/8 1.12 1.1250 1.1140 1 11/16 1.688 1.631 1.949 1.859 11/16 .718 .658 2.500 2.750
1 1/4 1.25 1.2500 1.2390 1 7/8 1.875 1.812 2.162 2.066 25/32 .813 .749 2.750 3.000
1 1/2 1.50 1.5000 1.4880 2 1/4 2.250 2.175 2.598 2.480 1 5/16 .974 .902 3.250 3.500
  Length tolerance:
Nominal Diameter Nominal length
Up to 1" Over 1" to 2 ½" Over 2 ½" to 4" Over 4" to 6" More than 6"
1/4 - 3/8 -.03 -.04 -.06 -.10 -.18
7/16 y ½ -.03 -.06 -.08 -.10 -.18
9/16 - 3/4 -.03 -.08 -.10 -.10 -.18
7/8 y 1 - -.10 -.14 -.16 -.20
1 1/8 - 1 1/2 - -.12 -.16 -.18 -.22
Grade 8
Applications High performance applications
Material Medium carbon steel, heat treatment.
Heat treatment Heat treatment tempered in oil or water at 800° F minimum.
Hardness See next row
Core Hardness 1/4" - 1 ½" D. All lengths: C33-C39 Rockwell
Surface hardness 1/4" - 1 1/2" D. All lengths: 30N58.6 max.
Burden of proof 1/4"-1-1-1/2" D, All lengths: 120,000 ps
Performance Strength 1/4"-1-1-1/2" D, all lengths: 130,000 psi min.
Tensile strength 1/4"-1-1-1/2" D, all lengths: 150,000 psi min.
Lengthening 12% min
Reduction of the area 35% min
Tipo

Hexagonal screw

Grado

SAE J429 Gr 8

Material

Medium carbon steel, heat treatment.

Dimensiones

ASME B18.6.3

Acabado

Pavonado

Cabeza

Hexagonal

Cuerda

UNC Standard

Diámetro

1/4, 5/16, 3/8, 7/16, 1/2, 5/8, 3/4, 7/8, 1, 1 1/8, 1 1/4, 1 1/2

Largo

1/2, 3/4, 1, 1 1/4, 1 1/2, 1 3/4, 2, 2 1/2, 3, 3 1/2, 4, 4 1/2, 5, 5 1/2, 6, 6 1/2, 7, 7 1/2, 8, 9, 10, 11, 12