AN UNBIASED VIEW OF TYPES OF SCREW HEADS

The JIS B 1012[26] was frequently present in Japanese created devices, like cameras and motorbikes. Superficially it looks like a Phillips screw with narrower plus much more vertical slots, to give a lot less tendency to cam out. A pentagon screw generate employs 5-sided fastener heads, plus the fastener is known as a penta screw or penta bolt. it