Value Collection KP44150 Hex Cap Screw 7/8-9 X 2-3/4 in Grade 8

Product Description

The VALUE COLLECTION KP44150 is a 7/8-9 UNC hex head cap screw measuring 2-3/4 inches under the head, manufactured from Grade 8 steel with a zinc-plated finish. Partial threading provides a defined grip zone for clamping applications requiring a smooth shank. The zinc plating offers a baseline level of corrosion resistance suited to general indoor and sheltered outdoor environments. This fastener meets ASTM A354 BD specifications, confirming minimum tensile strength and proof load requirements consistent with Grade 8 classification. Sold in a package of 20, this screw is used by maintenance mechanics, pipefitters, millwrights, and general contractors for structural assembly, equipment mounting, and mechanical connections requiring high-strength fastening.

This hex head cap screw is suited to heavy-duty mechanical and structural applications where a high-strength fastener is required. Typical uses include equipment base plate mounting, structural steel connections, machine frames, and general industrial assembly. The 7/8-9 UNC thread form is a standard coarse pitch widely used in North American trades. The partial thread design is appropriate where a bearing shank is needed to resist shear loads or where precise clamping length matters. Sold in packs of 20, this screw is practical for both field repairs and production-run assembly work.

Key Features

• Grade 8 steel construction meets ASTM A354 BD tensile and proof load requirements
• 7/8-9 UNC coarse thread — standard North American inch-series thread form
• 2-3/4 inch length under head for precise joint clamping control
• Partial threading preserves a smooth shank for shear-load resistance
• Zinc-plated finish provides basic corrosion protection in general service environments
• Package of 20 fasteners per unit quantity

Compatibility

Designed for use in any application requiring a 7/8-9 UNC Grade 8 hex head cap screw with a 2-3/4 inch grip length, including standard hex nuts and heavy hex nuts with matching UNC thread pitch.

Installation Notes

Installation is performed by mechanics, millwrights, pipefitters, or structural ironworkers using a standard hex wrench or impact driver with the appropriate 7/8-inch drive socket. Torque the fastener to the value specified in the equipment manufacturer documentation or applicable structural engineering specifications for Grade 8 hardware — do not use a generic torque value without confirming the joint design. Inspect threads for damage before installation and ensure mating nut threads are clean and free of debris. Where required by the application, flat washers and lock washers should be added per the assembly drawing.