M4-0.7 x 65mm 內六角螺絲 | 六角驅動 | 部分螺紋 | 12.9級合金鋼熱處理黑色氧化（200個/包）

I needed extra length for mounting some small jigs and these 65mm screws reached perfectly without bottoming out. The class 12.9 alloy steel feels incredibly solid while threading, and the black oxide finish looks clean and professional.

For a 65mm M4 screw, these are seriously beefy pieces of hardware—the thermal black oxide finish is smooth and even, and the hex socket grabs cleanly without any wobble. I’ve used them for a jig build and they’ve held up better than the stainless ones I had before, though you’ll want a good driver b

I needed longer screws for a custom jig, and these M4x65mm cap screws fit perfectly with the hex socket drive. The partial threading gives good grip while the unthreaded shank aligns the joint cleanly.