50 Piece Heavy Duty 12.9 Grade Alloy Steel Hex Socket Head Cap Screws Set UNC 6-32 X 1-1/4 Black Knurled Cap Bolts With 3mm Hex Key Socket Built For Machinery DIY Projects And Everyday Fixes

50-Piece Heavy-Duty 12.9 Alloy Steel Hex Socket Screws Set
✔️ Includes 50 pcs UNC 6-32 x 1-1/4 bolts with 3 mm hex key

These heavy-duty screws are 12.9 grade alloy steel hex socket head cap screws, built for demanding machinery, industrial assemblies, and tough DIY projects. They are finished in black oxide with knurled caps for grip and easy handling, and packed 50 pieces for fast replacements.

✅ Material: 12.9 grade alloy steel
✅ Finish: Black oxide with knurled cap
✅ Thread: UNC 6-32 x 1-1/4 in (31.75 mm)
✅ Socket: 3 mm hex key socket
✅ Pack: 50 pieces
✅ Weight: 159 g total

💡 What is a heavy-duty hex socket head cap screw used for in machinery and DIY projects?

Handy fasteners for secure joints in machines, equipment, and DIY builds.

• High-strength 12.9-grade alloy steel provides reliable clamp
• UNC 6-32 x 1-1/4 in size matches common hardware
• 3 mm hex key socket enables quick hand-tightening
• Black oxide finish resists corrosion for indoor use