براغي ذات رأس تجويف M12-1.75 × 45 مم | رأس مسطح، محرك سداسي تجويف | ملولبة بالكامل | فولاذ مقاوم للصدأ 316 (100 قطعة/عبوة)

The hex socket drive seated perfectly on my wrench without any rounding, and the 316 stainless finish feels solid for outdoor machinery use. Threads were clean and consistent across all 100 pieces, so my precision assembly went together without a single hitch.

Installing these into my welding jig, the hex socket drive made them much easier to tighten in tight spots. The 316 stainless feels solid and the threads cut cleanly without binding.

Replaced the old bolts on my boat trailer with these 316 stainless screws, and they fit perfectly for securing the bunks. The hex socket drive made installation quick with an Allen wrench without stripping. So far, no signs of rust after a week in saltwater.