Value Collection R57001282 Hex Head Cap Screw 3/4-16 X 4 in

Product Description

The VALUE COLLECTION R57001282 is a hex head cap screw sized 3/4-16 x 4 inches, manufactured from 18-8 stainless steel with an uncoated finish. This fastener features partial threading along its shank and is measured by length under head. The 3/4-16 designation indicates a 3/4-inch diameter with 16 threads per inch following the Unified National Fine (UNF) thread standard. At 0.3 pounds, it is a solid, corrosion-resistant fastener suited for mechanical assemblies, equipment mounting, and structural connections where stainless steel is required for corrosion resistance.

This screw is appropriate for use in plumbing, HVAC equipment mounting, pool and pump installations, and general mechanical applications where UNF thread engagement and stainless steel durability are specified. The partially threaded shank provides a clamping grip zone between the head and the threaded section, which is useful in bolted joint assemblies where shank bearing load matters. Trade professionals across multiple disciplines reach for this grade when working in wet, chemical-exposed, or outdoor environments.

Key Features

• 3/4-16 UNF thread provides fine thread engagement for precise clamping and vibration resistance
• 4-inch length under head accommodates thicker stack-ups and deeper bolt patterns
• 18-8 stainless steel construction resists corrosion in wet and outdoor service environments
• Partially threaded shank allows load to bear on the smooth shank in bolted joints
• Uncoated finish maintains dimensional consistency and is compatible with stainless nuts and hardware

Compatibility

Designed as a standard UNF hex head cap screw for use with 3/4-16 threaded holes, nuts, and inserts in mechanical and structural assemblies requiring 18-8 stainless steel fasteners.

Installation Notes

Installation should be performed by a qualified mechanic or trade professional using the appropriate hex wrench or socket. Always verify thread engagement depth and mating hardware material before installation to avoid galling, which is common with stainless steel fasteners — use anti-seize compound where appropriate. Torque to the specification listed in the equipment service documentation, not a generic value. Ensure mating threads are clean and free of debris before assembly.