Hammond 1421A25 25-Pack 10-32 Countersunk Rack Screws With Cup Washers

The 1421A25 is a hardware package of 25 rack screws and 25 matching plastic cup washers, intended for mounting rack panels, shelves and equipment faceplates to 10-32 threaded rack rails. It suits AV installers, test and measurement labs, IT and facilities teams who need a small, ready-to-use quantity of mounting hardware rather than bulk boxes.

The screws are precision crafted from heat-treated low-carbon steel, with the heat treatment specified to resist stripping during repeated installation and removal. Each screw has a countersunk head driveable with either a slotted or a Phillips driver, is 0.625 in. long, carries a 10-32 thread and is finished in nickel plate. The supplied cup washers are a hard black plastic with a 0.58 in. outside diameter, seating under the countersunk head to spread load and protect panel faces.

Because the head is countersunk and the washer is cupped to match, the assembly sits neatly against equipment ears and panel slots. The 10-32 thread makes 1421A25 applicable to racks and cabinets with 10-32 tapped rails.

Packaged quantity is 25 screws with 25 plastic washers, and shipping weight is listed at 1 lbs (0.45 kg). The part is RoHS compliant, REACH compliant, USMCA compliant, classified ECCN EAR99, with tariff code 7318.15.8085 and country of origin CA.

Hammond notes that the 1421A series is being consolidated: screw packs are now offered with either metal or plastic washers under the 1421 series, and the 1421A line will be discontinued as a stocked series, available while quantities last. Buyers standardising on a long-term part number should review the 1421 series equivalents.