M5 Wood Screws | McMaster-Carr

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9 Products

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







	M5 × 2.2 mm

	20	3.5	Partially Threaded	Thread Forming	DIN 571	100	97498A111	00000


	25	3.5	Partially Threaded	Thread Forming	DIN 571	100	97498A112	00000
	30	3.5	Partially Threaded	Thread Forming	DIN 571	100	97498A113	00000
	35	3.5	Partially Threaded	Thread Forming	DIN 571	50	97498A114	0000
	40	3.5	Partially Threaded	Thread Forming	DIN 571	50	97498A115	00000
	45	3.5	Partially Threaded	Thread Forming	DIN 571	50	97498A116	0000
	50	3.5	Partially Threaded	Thread Forming	DIN 571	50	97498A117	00000
	60	3.5	Partially Threaded	Thread Forming	DIN 571	50	97498A118	00000

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	Hardness	Pkg. Qty.		Pkg.
316 Stainless Steel



		M5	27	M5 × 0.8 mm	20	50	Not Rated	Not Rated	1	98828A100	00000