1-3/8-6 x 12" 소켓 캡 나사 | 육각 소켓 드라이브 | 부분 나사산 | 합금강 열처리 블랙 옥사이드

Used two of these to hold a heavy jig together on the mill yesterday, and the hex socket drive took a lot of torque without stripping. The partially threaded section seated nice and deep, and the thermal black oxide looks almost matte under the shop lights. Solid feel for the price.

The black oxide finish on these screws looks professional and resists wear well in my shop fixtures. The hex socket drive made installation straightforward with my Allen key, even in tight spots.

I needed a longer bolt for a custom jig I'm building, and these 12-inch socket cap screws fit the bill perfectly. The partially threaded design gave me the grip I needed while leaving plenty of thread for tightening, and the hex drive made installation easy with a standard Allen key.