Value Collection -30604-21 Hex Cap Screw 3/4-10 316 Ss

Product Description

The VALUE COLLECTION -30604-21 is a 3/4-10 UNC hex head cap screw measuring 4-1/2 inches under the head, manufactured from Grade 316 stainless steel with a bright uncoated finish. The partial thread configuration makes it suited for applications requiring a bearing surface or clamping through thicker material. Grade 316 stainless steel provides corrosion resistance in wet, marine, chemical, and outdoor environments where standard carbon steel or Grade 304 fasteners would degrade. Tradespeople and maintenance mechanics working in plumbing, HVAC, pool equipment, and marine installations rely on this grade when fastener longevity in harsh conditions is a priority.

This screw is used in general mechanical assembly and structural fastening applications across residential and commercial settings. Typical installations include equipment mounting, pipe flange connections, pump assemblies, and pool or spa equipment enclosures where exposure to moisture, chlorine, or mild corrosives is expected. The 3/4-10 UNC thread size is a common heavy-duty fastener dimension found in equipment frames, brackets, and base plates throughout the trades. Partial threading allows the shank to bear load without threading engagement along the full grip length.

Key Features

• Grade 316 stainless steel construction for superior corrosion resistance in wet and chemical environments
• 3/4-10 UNC thread — standard coarse-thread pitch for heavy mechanical and structural fastening
• 4-1/2 inch length under head accommodates thick material stacks and flanged connections
• Partially threaded shank provides a smooth grip section for shear load applications
• Bright uncoated finish — no coating to chip, flake, or interfere with mating surfaces

Compatibility

Designed as a standard 3/4-10 UNC hex head cap screw for use wherever a Grade 316 stainless steel fastener of this thread size and length is specified. Consult equipment documentation to confirm thread engagement, grip length, and torque requirements before installation.

Installation Notes

Installation should be performed by a qualified mechanic or tradesperson using a properly sized wrench or socket rated for the fastener drive size. Ensure mating threads are clean and free of debris before assembly. Apply an anti-seize compound compatible with stainless steel to prevent galling, which is common when torquing stainless fasteners against stainless nuts or tapped holes. Follow the equipment manufacturer or applicable code specifications for required torque values.