GRADE-8 FASTENERS

Are you searching for high quality Grade 8 Hex Cap Screws? CT Fasteners is a U.S.A. distributor of premium fasteners and industrial shop supplies for more than a three decades now. Our products and services have been servicing the manufacturing, construction, military government and service industries since 1989. We constantly strive to effectively offer the best materials and solutions at the most affordable cost. Thus, when it comes to industrial supplies such as hex cap screws, we are your absolute trusted supplier.

A hex cap screw, also known as hex head bolt or hex head cap screw, is a threaded fastener that features a hexagonal head from which its name was derived. Its head comes with a washer face under it for ample bearing surface during tightening process with a wrench. This is commonly used as a general-purpose threaded fastener to put two parts together, for insertion into a pre-tapped hole, or for use with nuts. This is a common manufacturing companies, residential, commercial and industrial screw that comes in different lengths diameters and mechanical properties.

A Grade 8 Hex Cap Screw has the following properties:

Nominal Size Range: 1/4 inch through 1 inch
Proof Load: 150,000 psi
Minimum Yield Strength: 130,000 psi
Minimum Tensile Strength: 120,000 psi

ULTRA-Gold corrosion protection

Nominal Size Range: over 1/4" inch thru 2"
Proof Load: 74,000 psi
Minimum Yield Strength: 81,000 psi
Minimum Tensile Strength: 105,000 psi

Additionally, Grade 8 Hex Cap Screws are made from Medium Carbon Alloy Steel, quenched and tempered. You will also notice that the hexagonal head bears six radial lines, compared to a Grade 5 with only three markings and a Grade 8 with six radial lines.

US Standard Thread Length for Bolts