Heavy Hitter 5/16-18 X 2 1/2 Inch Socket Head Cap Screws, 20Pc 304 Stainless Steel Hex Bolts With Spanner, Black Oxide Rust Proof Fasteners For No Sweat Garage Work And Auto Builds
✔️ 5/16-18 x 2.5 in 304 stainless steel black oxide 20 pack bolts
This pack comes with 20 pieces of corrosion proof fasteners designed for heavy torque setups and precision mechanical assemblies. You can mount suspension components on classic cars, secure hydraulic line brackets, or outfit workshop tool chests without dealing with stripped heads or surface oxidation during daily garage labor.
✅ 5/16 inch nominal bore size matched to 18 threads per inch pitch✅ 2.5 inch threaded engagement length for thick plate mounting surfaces
✅ 0.464 inch external head diameter with 0.307 inch raised cylinder height
✅ 1/4 inch internal hex wrench depression rated for high torque load transfer
✅ 304 grade chromium nickel alloy treated with protective black oxide layer
✅ 20 piece retail bundle shipped ready for immediate project installation
💡 What makes socket head cap screws a handy upgrade for high vibration motorcycle restoration projects? These specialized fasteners replace standard hex head bolts when space is tight and maximum clamping power matters most. - Fine 18 thread pitch mates cleanly with drilled aluminum plates and stops backing off under constant engine rumble. - Cylindrical head profile stays flush against suspension arms so kickstands and exhaust pipes never scrape the ground. - Black oxide coating seals grain boundaries against brake dust and winter road salt while preserving precise thread tolerances. - Internal hex recess accepts standard L wrenches deep inside fork triple trees without stripping the drive flats.
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