Metric Square Head Set Screws

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31 Products

External-Square-Drive Steel Extended-Tip Set Screws

Tighten these screws to locate and hold components without worrying about your sockets slipping. Four large, flat sides give you reliable torque but slightly less than external hex drives. Like a dowel pin, the tip slides into mating holes on shafts, tubing, and other surfaces. Made of alloy steel, they're strong enough to hold components without wearing down. Also known as half dog-point set screws.

		Tip, mm		Head, mm
	Lg., mm	Dia.	Lg.	Wd.	Ht.	Hardness	Specs. Met	Pkg. Qty.		Pkg.
Alloy Steel







				M6 × 1 mm

				12	4	1.75	6	6	Rockwell C20	DIN 479	10	000000000	00000


				16	4	1.75	6	6	Rockwell C20	DIN 479	10	000000000	0000
				20	4	1.75	6	6	Rockwell C20	DIN 479	10	000000000	0000
				25	4	1.75	6	6	Rockwell C20	DIN 479	10	000000000	0000
				35	4	1.75	6	6	Rockwell C20	DIN 479	10	000000000	00000




						M8 × 1.25 mm

						25	5.5	2.25	8	8	Rockwell C22	DIN 479	5	000000000	0000


						30	5.5	2.25	8	8	Rockwell C22	DIN 479	5	000000000	0000
						35	5.5	2.25	8	8	Rockwell C22	DIN 479	5	000000000	0000
						40	5.5	2.25	8	8	Rockwell C22	DIN 479	5	000000000	0000
						50	5.5	2.25	8	8	Rockwell C22	DIN 479	5	000000000	0000




								M10 × 1.5 mm

								25	7	2.75	10	10	Rockwell C22	DIN 479	5	000000000	0000


								30	7	2.75	10	10	Rockwell C22	DIN 479	5	000000000	0000
								35	7	2.75	10	10	Rockwell C22	DIN 479	5	000000000	00000
								40	7	2.75	10	10	Rockwell C22	DIN 479	5	000000000	00000
								50	7	2.75	10	10	Rockwell C22	DIN 479	5	000000000	00000
								60	7	2.75	10	10	Rockwell C22	DIN 479	5	000000000	00000




										M12 × 1.75 mm

										35	8.5	3.25	13	12	Rockwell C22	DIN 479	1	000000000	0000


										40	8.5	3.25	13	12	Rockwell C22	DIN 479	1	000000000	0000
										50	8.5	3.25	13	12	Rockwell C22	DIN 479	1	000000000	0000
										60	8.5	3.25	13	12	Rockwell C22	DIN 479	1	000000000	0000
										70	8.5	3.25	13	12	Rockwell C22	DIN 479	1	000000000	0000
										80	8.5	3.25	13	12	Rockwell C22	DIN 479	1	000000000	0000
										100	8.5	3.25	13	12	Rockwell C22	DIN 479	1	000000000	00000




												M16 × 2 mm

50												12	4.3	17	16	Rockwell C22	DIN 479	1	000000000	0000


60	12											4.3	17	16	Rockwell C22	DIN 479	1	000000000	0000
80	12											4.3	17	16	Rockwell C22	DIN 479	1	000000000	0000
100	12	4.3										17	16	Rockwell C22	DIN 479	1	000000000	00000




		M20 × 2.5 mm

		60	15									5.3	22	20	Rockwell C23	DIN 479	1	000000000	00000


		70	15									5.3	22	20	Rockwell C23	DIN 479	1	000000000	00000
		80	15									5.3	22	20	Rockwell C23	DIN 479	1	000000000	00000
		100	15									5.3	22	20	Rockwell C23	DIN 479	1	000000000	00000