M10 Lags | McMaster-Carr

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19 Products

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Steel Hex Head Wood Screws

Often used on posts and beams, the coarse threads on these screws dig in for a firm hold. The hex head's six contact points keep sockets in place to avoid slipping and stripping the drive. To tighten, use a wrench or six-point hex socket. Also known as lag bolts.

Drill a pilot hole slightly smaller than the screw to prevent splitting. Length is measured from under the head.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

	Tapping Method	Specs. Met	Pkg. Qty.		Pkg.
Zinc-Plated Steel







	M10 × 4.5 mm

	30	7	Partially Threaded	Thread Forming	DIN 571	10	97498A153	00000


	35	7	Partially Threaded	Thread Forming	DIN 571	10	97498A154	0000
	40	7	Partially Threaded	Thread Forming	DIN 571	10	97498A155	0000
	45	7	Partially Threaded	Thread Forming	DIN 571	10	97498A156	0000
	50	7	Partially Threaded	Thread Forming	DIN 571	10	97498A157	0000
	55	7	Partially Threaded	Thread Forming	DIN 571	10	97498A158	0000
	60	7	Partially Threaded	Thread Forming	DIN 571	10	97498A159	0000
	70	7	Partially Threaded	Thread Forming	DIN 571	10	97498A161	00000
	80	7	Partially Threaded	Thread Forming	DIN 571	10	97498A162	00000
	90	7	Partially Threaded	Thread Forming	DIN 571	10	97498A163	00000
	100	7	Partially Threaded	Thread Forming	DIN 571	10	97498A164	00000


	120	7	Partially Threaded	Thread Forming	DIN 571	5	97498A165	0000
	140	7	Partially Threaded	Thread Forming	DIN 571	5	97498A166	0000
	160	7	Partially Threaded	Thread Forming	DIN 571	5	97498A167	0000
	180	7	Partially Threaded	Thread Forming	DIN 571	5	97498A168	0000
	200	7	Partially Threaded	Thread Forming	DIN 571	1	97498A169	0000

Thread-Mount Studs for Wood

Also known as hanger bolts, use these studs to hang, mount, and fasten parts to wood structures. Install them with a stud driver, or create wrench flats by threading two nuts onto the stud and jamming them together.

316 Stainless Steel—Superior to 18-8 stainless steel, these studs won't degrade when exposed to harsh weather, salt water, and most chemicals.

	(A)		(B)
	Screw Size	Thread Lg., mm	Thread Size	Thread Lg., mm	Lg., mm	Tensile Strength, psi	Hardness	Pkg. Qty.		Pkg.
316 Stainless Steel



		M10	40	M10 × 1.5 mm	20	60	100,000	Rockwell C25	1	98828A310	00000


		M10	60	M10 × 1.5 mm	20	80	100,000	Rockwell C25	1	98828A320	0000
		M10	70	M10 × 1.5 mm	30	100	100,000	Rockwell C25	1	98828A330	0000