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Steel Hex Cap Screw: Zinc Flake Coated, Grade 8 Material Grade, 5/16"-18 Thread Size, 2 3/4 in Shank Lg, 25 PK

Item # 597Z411

$19.00 Pack of 25

Product Specs

Material: Steel
Finish: Zinc Flake Coated
Material Grade: Grade 8
Thread Size: 5/16"-18
Drive: Hex
Shank Length: 2 3⁄4 in
Thread: Partially Threaded
Minimum Thread Length: 7⁄8 in
Head Width: 1⁄2 in
Head Height: 13⁄64 in
Pack Qty: 25
System of Measurement: Imperial
Specifications Met: ASME B18.2.1; SAE J429
Head Style: Hex
Minimum Tensile Strength: 150,000 psi
Overall Length: 2.953125 in
Removable: No
Resistance Properties: Corrosion-Resistant
RoHS Compliant: Yes
Rockwell Hardness: C33
Salt Spray Results/ASTM B117: 1000 Hours No Rust
Screw Size: 5/16 in
Thread Direction: Right Hand
Thread Type: UNC

Compliance and Restrictions

Country Of Origin

  • Canada

About This Product

These Steel Hex Cap Screws are constructed of steel, which is a magnetic material that provides strength for everyday fastening applications. They have a zinc flake coated finish, which is created by bonding zinc and aluminum flakes to a material to provide corrosion resistance. They also have a Grade 8 material grade and a 5/16"-18 thread size. They have a 2 3/4 in shank length. They are partially threaded, which is a shaft style where the thread runs from the tip of the fastener to the unthreaded portion, known as the grip length, to provide better alignment and excellent shear resistance to provide enough force to hold objects in place. They have a 7/8 in minimum thread length. Pack of 25.

About Hex Cap Screws

Also called hex head cap screws, these fasteners have a six-sided head with a wide underside to spread loads evenly across surfaces.

Steel provides strength for everyday fastening applications. These screws are magnetic.