Value Collection 592509BR Hex Socket Cap Screw 1-8 Unc

Product Description

The VALUE COLLECTION 592509BR is a hex socket cap screw designed for heavy-duty fastening applications requiring corrosion resistance and precise torque delivery. It features a 1-8 UNC thread size, a 6-inch length under head, and a 3/4-inch hex drive socket. Manufactured from 18-8 austenitic stainless steel (Austenitic Grade A2), this screw meets ASME/ANSI B18.3 and ASTM F837 standards. The bright, uncoated finish maintains dimensional accuracy and ensures compatibility with standard hex keys and Allen wrenches. Partial threading along the shank makes it suitable for applications where a clamping grip zone is required between the head and the threaded engagement. Installation is typically performed by machinists, millwrights, or general maintenance trades.

This cap screw is suited for use in mechanical assemblies, structural fixtures, and equipment maintenance where a flush or recessed fastener head is required. The 1-8 UNC coarse thread pitch is well-suited for use in softer base materials or where quick assembly and disassembly is expected. Stainless steel construction makes it appropriate for wet, outdoor, or mildly corrosive environments. It is sold individually and is applicable across industrial, commercial, and maintenance repair operations (MRO) settings.

Key Features

• 1-8 UNC coarse thread for reliable engagement in a wide range of base materials
• 6-inch length under head provides extended clamping reach for thick or stacked assemblies
• 3/4-inch hex drive socket for high-torque installation with standard hex keys or Allen drivers
• Partial threading preserves a smooth shank section for bearing-load and alignment applications
• 18-8 austenitic stainless steel (Grade A2) offers corrosion resistance without plating or coating
• Meets ASME/ANSI B18.3 and ASTM F837 dimensional and material standards

Compatibility

Designed as a standard ASME/ANSI B18.3-compliant hex socket cap screw for use in any application requiring a 1-8 UNC threaded fastener with a 3/4-inch hex drive and 6-inch length under head.

Installation Notes

Installation is performed using a 3/4-inch hex key or Allen-style driver. Power down or de-energize any equipment before accessing fastener locations in live mechanical or electrical assemblies. Ensure the mating threaded hole is clean and free of debris before driving the screw to avoid cross-threading or galling on stainless threads. Apply an appropriate anti-seize compound to stainless fasteners when torquing into stainless or aluminum tapped holes to reduce the risk of thread galling under load.