Value Collection 011211P Hex Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION 011211P is a 5/16-18 UNC hex socket cap screw designed for secure, high-strength fastening in mechanical and structural assemblies. The screw measures 2 inches in length under the head and is partially threaded, allowing it to clamp materials together without thread engagement through the full grip length. Drive engagement is via a 1/4 inch hex socket. The alloy steel construction with black oxide coating provides corrosion resistance and a consistent surface finish suited to industrial environments. Installation requires a standard 1/4 inch hex key or socket driver. This fastener is appropriate for use in HVAC equipment assemblies, pump housings, electrical enclosures, and general mechanical fabrication.

This screw is used in applications requiring a strong, recessed-drive fastener where a flush or below-surface head profile is needed. Partially threaded shanks are common in clamped-joint applications where thread engagement in the second member is not desired. The 5/16-18 UNC thread is a standard coarse-pitch designation used widely in North American mechanical equipment, making this screw a practical fit for field repairs, OEM assembly, and fabrication shops. Minimum order quantity is 100 pieces per order.

Key Features

• 5/16-18 UNC coarse thread for broad compatibility with standard tapped holes
• 2 inch length under head with partial threading for clamped-joint applications
• 1/4 inch hex socket drive for positive torque engagement
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM A574 standards
• Black oxide coating provides mild corrosion resistance and reduced light reflection
• Recessed socket head allows installation in countersunk or close-clearance locations

Compatibility

Designed as a standard 5/16-18 UNC hex socket cap screw for use in any tapped hole or threaded insert conforming to 5/16-18 UNC specifications per ASME/ANSI B18.3.

Installation Notes

Installation is performed using a 1/4 inch hex key or hex socket driver. Ensure the mating tapped hole is clean and free of debris before driving the fastener. Follow applicable torque specifications for the fastener grade and joint material per engineering documentation or applicable standards. Do not exceed rated torque for alloy steel fasteners of this size class.