{"product_id":"hillman-fasteners-300039-split-lock-washer-3-4-in-20pk","title":"Hillman Fasteners 300039 Split Lock Washer 3\/4 in 20PK","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HILLMAN FASTENERS 300039 is a split lock washer designed to prevent fastener loosening under vibration and torque load. Made from zinc plated steel, this washer provides corrosion resistance suitable for general mechanical and structural applications. Sold in a 20-pack, it is sized for 3\/4 inch fasteners. Plumbers, electricians, HVAC technicians, and general contractors reach for this washer when securing bolts and nuts in installations where vibration or thermal cycling could cause fastener backing. The split design bites into the mating surface and fastener bearing face to maintain clamp load over time.\u003c\/p\u003e\n\u003cp\u003eThis split lock washer is suited for residential and light commercial trade applications including equipment mounting, pipe hanger hardware, electrical panel and conduit support, and mechanical room installations. The 3\/4 inch size fits standard 3\/4 inch bolts commonly used in HVAC equipment bases, pump flanges, and structural support connections. The 20-pack format is practical for single jobs or replenishing a field service kit.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSplit lock design creates tension that resists fastener loosening under vibration\u003c\/li\u003e\n  \u003cli\u003eZinc plated steel construction provides corrosion resistance for general indoor and protected outdoor use\u003c\/li\u003e\n  \u003cli\u003eSized for 3\/4 inch fasteners, a common trade size for equipment mounting hardware\u003c\/li\u003e\n  \u003cli\u003e20-pack quantity reduces per-unit cost for multi-fastener jobs\u003c\/li\u003e\n  \u003cli\u003eStandard split lock washer profile compatible with common bolt and nut configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard 3\/4 inch bolts and nuts in general mechanical, plumbing, electrical, and HVAC fastening applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSplit lock washers are installed by placing the washer on the bolt shank between the nut and the mating surface before tightening. Install with the sharp cut edges oriented toward the nut bearing face for maximum bite. Ensure mating surfaces are clean and free of oil or debris before assembly. No specialized trade license is required for fastener installation, but follow applicable mechanical and structural codes for the specific application.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Zinc Plated Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWasher Type\u003c\/strong\u003e: Split Lock Washer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Size\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 7.65 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: EA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HILLMAN FASTENERS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 300039\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HILLMAN","offers":[{"title":"Default Title","offer_id":51558390563122,"sku":"300039","price":67.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c4f7dde2bc3837bc1a7c83b19164cfbd_fc2b4f36-0dca-43fa-ad29-d8c66694a6e9.jpg?v=1786410953","url":"https:\/\/voomisupply.com\/products\/hillman-fasteners-300039-split-lock-washer-3-4-in-20pk","provider":"Voomi Supply","version":"1.0","type":"link"}