Value Collection 63864 Flat Socket Cap Screw 1/4-28x1 100pk

Product Description

The VALUE COLLECTION 63864 is a flat socket cap screw designed for fastening applications that require a flush or countersunk head profile. Sized at 1/4-28 x 1 inch with a fully threaded shank, this screw uses a 5/32-inch hex socket drive and features an 82-degree flat head angle. It is manufactured from 18-8 stainless steel, which provides solid corrosion resistance in wet or outdoor service environments. This fastener follows the UNF (Unified Fine) thread standard and is sold in a package quantity of 100, making it suitable for production, maintenance, and repair work across mechanical, HVAC, plumbing, and general trade applications.

This screw is used in applications where the fastener head must sit flush with or below the surface of the mating material. The 1/4-28 UNF thread pitch is common in precision assemblies, thin-material joints, and equipment panels. Typical installers include HVAC technicians, pipefitters, electricians, and millwrights who require a clean, low-profile fastener in stainless steel for corrosion-prone environments. The 100-piece package quantity supports both single-job use and shop stock replenishment.

Key Features

• 82-degree flat head seats flush in standard countersunk holes
• 5/32-inch hex socket drive for precise torque application
• 1/4-28 UNF fully threaded shank for maximum thread engagement over the full 1-inch length
• 18-8 stainless steel construction resists corrosion in wet and outdoor service conditions
• Inch measurement system with overall length specification
• Package quantity of 100 supports production and stocking needs

Compatibility

Designed as a standard UNF fastener for use in any application requiring a 1/4-28 x 1-inch fully threaded flat socket cap screw with an 82-degree countersink and 5/32-inch hex socket drive.

Installation Notes

Install using a calibrated 5/32-inch hex key or socket driver to ensure proper seating without cam-out. Verify that the mating material is countersunk to 82 degrees before driving the fastener to prevent head deformation or surface damage. Disconnect power or shut off system pressure before replacing fasteners in live equipment panels or pressurized assemblies. Follow applicable mechanical and equipment codes for fastener torque and material compatibility in the specific application.