DIN 929 Weld Nuts | McMaster-Carr

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Weld Nuts

Add permanent threads to thin metal with our go-to weld nuts. Unlike press-fit and rivet nuts, these nuts fuse to the base metal, so they won’t twist and pull out. Three evenly spaced projections concentrate heat away from the threads to prevent them from deforming and create consistent welds. All have a collar pilot that guides the nut into the hole, holds it in place while welding, and protects the threads from weld spatter. You can also install them on thick pieces of metal.

Steel—Best for dry environments since moisture will cause them to rust. Made of uncoated steel, these nuts require minimal prep. Weld them to uncoated steel surfaces.

18-8 Stainless Steel—Suitable for outdoor use, these nuts resist rust from water and mild chemicals. Weld them to stainless steel surfaces.

Grade 2 Titanium—The best choice when you need a high strength-to-weight ratio, these nuts are 40% lighter than steel nuts. They’re also our most corrosion-resistant weld nuts, standing up to salt water, strong acids, and other harsh chemicals. Weld them to titanium surfaces.

				Collar, mm
	Thread Size	Wd., mm	Ht., mm	Dia.	Ht.	For Hole Dia., mm	Specs. Met	Pkg. Qty.		Pkg.
Steel



		M3 × 0.5 mm	7.5	2.45	4.5	0.55	4.5	DIN 929	100	93337A400	000000


		M4 × 0.7 mm	9	2.85	6	0.65	6	DIN 929	100	93337A500	00000
		M5 × 0.8 mm	10	3.3	7	0.7	7	DIN 929	100	93337A600	00000
		M6 × 1 mm	11	4.25	8	0.75	8	DIN 929	50	93337A110	0000
		M8 × 1.25 mm	14	5.6	10.5	0.9	10.5	DIN 929	50	93337A210	00000
		M10 × 1.25 mm	17	6.85	12.5	1.15	12.5	DIN 929	25	93337A111	00000
		M10 × 1.5 mm	17	6.85	12.5	1.15	12.5	DIN 929	25	93337A310	00000
		M12 × 1.75 mm	19	8.6	14.8	1.4	14.8	DIN 929	25	93337A700	00000
		M14 × 2 mm	22	9.2	16.8	1.8	16.8	DIN 929	10	93337A800	00000
		M16 × 2 mm	24	11.2	18.8	1.8	18.8	DIN 929	10	93337A900	00000


		18-8 Stainless Steel



				M3 × 0.5 mm	7.5	2.5	4.5	0.55	4.5	DIN 929	100	93418A200	00000


				M4 × 0.7 mm	9	2.9	6	0.65	6	DIN 929	50	93418A300	0000
				M5 × 0.8 mm	10	3.3	7	0.7	7	DIN 929	50	93418A400	00000
				M6 × 1 mm	11	4.3	8	0.75	8	DIN 929	25	93418A500	0000
				M8 × 1.25 mm	14	5.6	10.5	0.9	10.5	DIN 929	25	93418A600	00000
				M10 × 1.5 mm	17	6.9	12.5	1.15	12.5	DIN 929	10	93418A700	0000
				M12 × 1.75 mm	19	8.6	14.8	1.4	14.8	DIN 929	10	93418A800	00000
				M16 × 2 mm	24	11.2	18.8	1.8	18.8	DIN 929	1	93418A900	00000


				Grade 2 Titanium



						M6 × 1 mm	11	4.3	8	0.75	8	DIN 929	1	93382A160	00000


						M8 × 1.25 mm	14	5.6	10.5	0.9	10.5	DIN 929	1	93382A170	00000
						M10 × 1.5 mm	17	6.9	12.5	1.15	12.5	DIN 929	1	93382A180	00000