45 mm Wood Screws | McMaster-Carr

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10 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

	45	3.5	Partially Threaded	Thread Forming	DIN 571	50	97498A116	00000




			M6 × 2.6 mm

			45	4	Partially Threaded	Thread Forming	DIN 571	50	97498A125	00000




					M8 × 3.6 mm

					45	5.5	Partially Threaded	Thread Forming	DIN 571	25	97498A139	00000




							M10 × 4.5 mm

							45	7	Partially Threaded	Thread Forming	DIN 571	10	97498A156	0000




									M12 × 5 mm

									45	8	Partially Threaded	Thread Forming	DIN 571	10	97498A172	0000

Steel Phillips Rounded Head Drilling Screws

Drill and fasten metal in one step and create a finished look with these rounded head screws. The Phillips drive withstands less torque than a hex drive, so apply even, steady pressure when drilling.

Length is measured from under the head.

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

		Drill Tip		Head, mm
	Lg., mm	Point Size	Lg., mm	Dia.	Ht.	Max. Drilling Thk., mm	Drive Size	Specs. Met	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				M3.9 Screw Size

				45	No. 2	7.5	7.5	2.8	2.4	No. 2	DIN 7504 N, ISO 7049	100	90769A122	000000




						M4.2 Screw Size

						45	No. 2	9	8.2	3.1	3	No. 2	DIN 7504 N, ISO 7049	50	90769A132	0000




								M4.8 Screw Size

								45	No. 2	10.5	9.5	3.7	4.4	No. 2	DIN 7504 N, ISO 7049	50	90769A142	0000




										M5.5 Screw Size

										45	No. 3	11	11	4	5.25	No. 3	DIN 7504 N, ISO 7049	25	90769A158	0000




												M6.3 Screw Size

												45	No. 3	12	12.5	4.6	6	No. 3	DIN 7504 N, ISO 7049	25	90769A171	0000