Heavy Duty 1/4-20 X 3/8 Inch Combo Round Machine Screws In Zinc Plated Steel With Phillips Slotted Drive For Gritty Jobs And Quick Fixes Bulk Pack Of One Hundred Pieces Built Like A Tank

Bulk 100 Pack 1 4 Inch Zinc Plated Steel Machine Screws
✔️ 1 4 20 x 3 8 Round Head Zinc Steel Screws Phillips Slotted Kit

This bulk assortment of zinc plated machine screws delivers fast holding power for automotive repairs, workshop projects, and home maintenance tasks. The combo Phillips slotted heads accept both driver types so you can grab whatever tool is lying around when a quick fix is called for.

✅ 1 4 20 thread pitch matches standard metal brackets and steel plates
✅ Compact 3 8 inch grip length fits into shallow tapped holes and tight frames
✅ Thin zinc coating blocks moisture and keeps screw bodies clean during storage
✅ Round head sits flush against flat surfaces and distributes clamping weight evenly

💡 What thread pitch holds tightest on engine bracket bolt patterns
Standard hex threads engage cold rolled steel firmly while resisting backout from road jolts
● Thick zinc coats block moisture and keep screw shanks corrosion free during wet winter jobs
● Handy combo heads let shop staff rotate drivers fast when tight bays hide standard bits
● Smooth round tops sit level against flat aluminum sheets and spread clamp pressure evenly

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