Dog-Point Thumb Screws | McMaster-Carr

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Export Control Classification Number (ECCN)

EAR99

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Compliant with Exemptions

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DFARS Specialty Metals

89 Products

Grip Style

Knurled Head

The texture increases friction so your fingers won't slip when tightening

60 products

Four Arm

Greater twisting control than other head shapes

29 products

Performance

Corrosion Resistant

Stay strong when exposed to moisture, chemicals, and harsh weather

36 products

Thumb Screw Head Profile

Low

The thin head fits in tight spaces

60 products

Stainless Steel Extended-Tip Thumb Screws

Corrosion resistant with an extended tip that acts like a dowel to fit into mating holes, align and hold parts together, and prevent cross-threading. Fasten these screws in workpieces that you regularly reposition or align. The knurled texture on the head creates extra grip as you twist. Also known as dog-point and pilot-point thumb screws.

Length is measured from under the head.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

		Head		Tip
	Lg.	Dia.	Ht.	Dia.	Lg.	Threading	Tensile Strength, psi		Each
18-8 Stainless Steel







				10-24

				1 1/4"	3/4"	5/16"	1/8"	1/8"	Partially Threaded	80,000	000000000	00000


				1 5/8"	3/4"	5/16"	1/8"	1/8"	Partially Threaded	80,000	000000000	0000
				2"	3/4"	5/16"	1/8"	1/8"	Partially Threaded	80,000	000000000	00000




						10-32

						1"	3/4"	5/16"	1/8"	1/8"	Partially Threaded	80,000	000000000	0000


						1 1/2"	3/4"	5/16"	1/8"	1/8"	Partially Threaded	80,000	000000000	0000
						2"	3/4"	5/16"	1/8"	1/8"	Partially Threaded	80,000	000000000	00000




								1/4"-20

								1"	1"	5/16"	11/64"	1/8"	Partially Threaded	80,000	000000000	00000


								1 1/2"	1"	5/16"	11/64"	1/8"	Partially Threaded	80,000	000000000	00000
								2"	1"	5/16"	11/64"	1/8"	Partially Threaded	80,000	000000000	00000
								2 1/2"	1"	5/16"	11/64"	1/8"	Partially Threaded	80,000	000000000	00000




										5/16"-18

										1"	1 1/8"	3/8"	15/64"	3/16"	Partially Threaded	80,000	000000000	00000


										1 1/2"	1 1/8"	3/8"	15/64"	3/16"	Partially Threaded	80,000	000000000	00000
										1 3/4"	1 1/8"	3/8"	15/64"	3/16"	Partially Threaded	80,000	000000000	00000
										2 1/4"	1 1/8"	3/8"	15/64"	3/16"	Partially Threaded	80,000	000000000	00000
										2 3/4"	1 1/8"	3/8"	15/64"	3/16"	Partially Threaded	80,000	000000000	00000
										3"	1 1/8"	3/8"	15/64"	3/16"	Partially Threaded	80,000	000000000	00000




												3/8"-16

												1 1/2"	1 1/4"	7/16"	9/32"	3/16"	Partially Threaded	80,000	000000000	00000


												2"	1 1/4"	7/16"	9/32"	3/16"	Partially Threaded	80,000	000000000	00000
												2 1/2"	1 1/4"	7/16"	9/32"	3/16"	Partially Threaded	80,000	000000000	00000
												3"	1 1/4"	7/16"	9/32"	3/16"	Partially Threaded	80,000	000000000	00000
												3 1/2"	1 1/4"	7/16"	9/32"	3/16"	Partially Threaded	80,000	000000000	00000
4"												1 1/4"	7/16"	9/32"	3/16"	Partially Threaded	80,000	000000000	00000




		1/2"-13

		2 1/2"	1 1/4"									1/2"	25/64"	1/4"	Partially Threaded	80,000	000000000	00000


		3"	1 1/4"									1/2"	25/64"	1/4"	Partially Threaded	80,000	000000000	00000
		3 1/2"	1 1/4"									1/2"	25/64"	1/4"	Partially Threaded	80,000	000000000	00000




												M4 × 0.7 mm

				32 mm	19 mm							8 mm	2 mm	3 mm	Partially Threaded	80,000	000000000	0000


				41 mm	19 mm							8 mm	2 mm	3 mm	Partially Threaded	80,000	000000000	0000




												M6 × 1 mm

						25 mm						25 mm	8 mm	4 mm	3 mm	Partially Threaded	80,000	000000000	0000


						38 mm	25 mm					8 mm	4 mm	3 mm	Partially Threaded	80,000	000000000	00000
						51 mm	25 mm					8 mm	4 mm	3 mm	Partially Threaded	80,000	000000000	00000




												M8 × 1.25 mm

												25 mm	29 mm	9.5 mm	6 mm	4 mm	Partially Threaded	80,000	000000000	00000


								38 mm	29 mm			9.5 mm	6 mm	4 mm	Partially Threaded	80,000	000000000	00000
								57 mm	29 mm			9.5 mm	6 mm	4 mm	Partially Threaded	80,000	000000000	00000




												M10 × 1.5 mm

												38 mm	32 mm	11 mm	7 mm	4 mm	Partially Threaded	80,000	000000000	00000


												51 mm	32 mm	11 mm	7 mm	4 mm	Partially Threaded	80,000	000000000	00000
										76 mm		32 mm	11 mm	7 mm	4 mm	Partially Threaded	80,000	000000000	00000

Steel Four-Arm Extended-Tip Thumb Screws

Four arms and an extended tip help you guide these screws into holes with greater control. The arms of the head have more surface area to grip than knurled-head thumb screws. The extended tip acts like a dowel—it fits into mating holes, aligns and holds parts together, and prevents cross-threading. Use these screws for workpieces that you regularly reposition or align. Also known as dog-point and pilot-point thumb screws.

Length is measured from under the collar.

Black-Oxide Steel—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.

		Head			Collar		Tip
	Lg.	Wd.	Ht.	Material	Dia.	Ht.	Dia.	Lg.	Threading	Tensile Strength, psi		Each
Black-Oxide Steel







				1/4"-20

				1"	1 1/8"	5/8"	Steel	9/16"	5/16"	5/32"	1/8"	Fully Threaded	60,000	000000000	00000


				1 1/2"	1 1/8"	5/8"	Steel	9/16"	5/16"	5/32"	1/8"	Fully Threaded	60,000	000000000	0000
				2"	1 1/8"	5/8"	Steel	9/16"	5/16"	5/32"	1/8"	Fully Threaded	60,000	000000000	00000
				2 1/2"	1 1/8"	3/4"	Aluminum	1/2"	3/8"	1/8"	1/8"	Partially Threaded	70,000	000000000	0000




						5/16"-18

						1 3/4"	1 1/2"	7/8"	Steel	11/16"	1/2"	13/64"	5/32"	Fully Threaded	60,000	000000000	0000


						2"	1 1/2"	7/8"	Aluminum	19/32"	1/2"	3/16"	5/32"	Partially Threaded	70,000	000000000	0000
						2 1/2"	1 1/2"	7/8"	Steel	11/16"	1/2"	13/64"	5/32"	Fully Threaded	60,000	000000000	0000
						3"	1 1/2"	7/8"	Steel	11/16"	1/2"	13/64"	5/32"	Fully Threaded	60,000	000000000	00000




								3/8"-16

								1 1/2"	2"	1 1/8"	Steel	13/16"	5/8"	1/4"	3/16"	Fully Threaded	60,000	000000000	0000


								2"	2"	1 1/8"	Steel	13/16"	5/8"	1/4"	3/16"	Fully Threaded	60,000	000000000	0000
								2 1/16"	2"	1"	Aluminum	11/16"	5/8"	1/4"	3/16"	Partially Threaded	70,000	000000000	00000
								2 1/2"	2"	1 1/8"	Steel	13/16"	5/8"	1/4"	3/16"	Fully Threaded	60,000	000000000	0000
								2 9/16"	2"	1"	Aluminum	11/16"	5/8"	1/4"	3/16"	Partially Threaded	70,000	000000000	00000
								3"	2"	1 1/8"	Steel	13/16"	5/8"	1/4"	3/16"	Fully Threaded	60,000	000000000	00000
								3 1/16"	2"	1"	Aluminum	11/16"	5/8"	1/4"	3/16"	Partially Threaded	70,000	000000000	00000




										1/2"-13

										1 1/2"	2 1/2"	1 1/2"	Steel	1"	15/16"	11/32"	1/4"	Fully Threaded	60,000	000000000	0000


										2 1/2"	2 1/2"	1 1/2"	Steel	1"	15/16"	11/32"	1/4"	Fully Threaded	60,000	000000000	0000
										2 9/16"	2 1/2"	1 1/2"	Aluminum	1 1/16"	1"	11/32"	1/4"	Partially Threaded	70,000	000000000	00000
										3"	2 1/2"	1 1/2"	Steel	1"	15/16"	11/32"	1/4"	Fully Threaded	60,000	000000000	00000
										3 1/16"	2 1/2"	1 1/2"	Aluminum	1 1/16"	1"	11/32"	1/4"	Partially Threaded	70,000	000000000	00000
										3 9/16"	2 1/2"	1 1/2"	Aluminum	1 1/16"	1"	11/32"	1/4"	Partially Threaded	70,000	000000000	00000




												5/8"-11

												3"	2 1/2"	1 1/2"	Steel	1"	15/16"	15/32"	5/16"	Fully Threaded	60,000	000000000	00000




												M6 × 1 mm

		26 mm										38 mm	22 mm	Zinc-Plated Cast Iron	16 mm	12.5 mm	4.5 mm	3 mm	Fully Threaded	70,000	000000000	00000


		38 mm	38 mm									22 mm	Zinc-Plated Cast Iron	16 mm	12.5 mm	4.5 mm	3 mm	Fully Threaded	70,000	000000000	00000




												M8 × 1.25 mm

												44.5 mm	38 mm	22 mm	Zinc-Plated Cast Iron	16 mm	12.5 mm	6 mm	4.5 mm	Fully Threaded	70,000	000000000	00000




												M10 × 1.5 mm

												38 mm	51 mm	22 mm	Zinc-Plated Cast Iron	19 mm	16 mm	7 mm	4.5 mm	Fully Threaded	70,000	000000000	00000


												51 mm	51 mm	22 mm	Zinc-Plated Cast Iron	19 mm	16 mm	7 mm	4.5 mm	Fully Threaded	70,000	000000000	00000




							M12 × 1.75 mm

							38 mm						63.5 mm	38 mm	Zinc-Plated Cast Iron	28.5 mm	25.5 mm	10 mm	6.5 mm	Fully Threaded	70,000	000000000	00000


							63.5 mm						63.5 mm	38 mm	Zinc-Plated Cast Iron	28.5 mm	25.5 mm	10 mm	6.5 mm	Fully Threaded	70,000	000000000	00000

Steel Extended-Tip Thumb Screws

The extended tip acts like a dowel to fit into mating holes, align and hold parts together, and prevent cross-threading. Fasten these screws in workpieces that you regularly reposition or align. The knurled texture of the head creates extra grip as you twist. Also known as dog-point and pilot-point thumb screws.

Length is measured from under the head.

		Head			Tip
	Lg.	Dia.	Ht.	Material	Dia.	Lg.	Threading	Tensile Strength, psi		Each
Black-Oxide Steel







				10-24

				1"	3/4"	1/4"	Black-Oxide Steel	1/8"	3/32"	Partially Threaded	Not Rated	000000000	00000


				1 1/2"	3/4"	1/4"	Black-Oxide Steel	1/8"	3/32"	Partially Threaded	Not Rated	000000000	0000
				2"	3/4"	1/4"	Black-Oxide Steel	1/8"	3/32"	Partially Threaded	Not Rated	000000000	0000




						10-32

						1"	3/4"	5/16"	Black-Oxide Steel	1/8"	1/8"	Partially Threaded	70,000	000000000	0000


						1 1/2"	3/4"	1/4"	Black-Oxide Steel	1/8"	1/8"	Partially Threaded	Not Rated	000000000	0000
						2"	3/4"	5/16"	Black-Oxide Steel	1/8"	1/8"	Partially Threaded	70,000	000000000	0000




								1/4"-20

								1"	1"	5/16"	Black-Oxide Steel	11/64"	1/8"	Partially Threaded	70,000	000000000	0000


								1 1/2"	1"	5/16"	Black-Oxide Steel	5/32"	1/8"	Partially Threaded	Not Rated	000000000	0000
								2"	1"	5/16"	Black-Oxide Steel	5/32"	1/8"	Partially Threaded	Not Rated	000000000	0000
								2 1/2"	1"	5/16"	Black-Oxide Steel	5/32"	1/8"	Partially Threaded	Not Rated	000000000	0000




										5/16"-18

										1"	1 1/8"	3/8"	Black-Oxide Steel	15/64"	3/16"	Partially Threaded	70,000	000000000	0000


										1 1/2"	1 1/8"	3/8"	Black-Oxide Steel	13/64"	5/32"	Partially Threaded	Not Rated	000000000	0000
										2"	1 1/8"	3/8"	Black-Oxide Steel	13/64"	5/32"	Partially Threaded	60,000	000000000	0000
										2 1/2"	1 1/8"	3/8"	Black-Oxide Steel	13/64"	5/32"	Partially Threaded	60,000	000000000	0000
										3"	1 1/8"	3/8"	Black-Oxide Steel	15/64"	3/16"	Partially Threaded	70,000	000000000	0000




												3/8"-16

												1 1/2"	1 1/4"	7/16"	Black-Oxide Steel	9/32"	3/16"	Partially Threaded	70,000	000000000	0000


												2"	1 1/4"	7/16"	Black-Oxide Steel	1/4"	3/16"	Partially Threaded	Not Rated	000000000	0000
												2 1/2"	1 1/4"	7/16"	Black-Oxide Steel	1/4"	3/16"	Partially Threaded	Not Rated	000000000	00000
												3"	1 1/4"	7/16"	Black-Oxide Steel	1/4"	3/16"	Partially Threaded	60,000	000000000	0000
												3 1/2"	1 1/4"	7/16"	Black-Oxide Steel	9/32"	3/16"	Partially Threaded	70,000	000000000	00000
												4"	1 1/4"	7/16"	Black-Oxide Steel	9/32"	3/16"	Partially Threaded	70,000	000000000	00000




												1/2"-13

		2 1/2"	1 1/4"									1/2"	Black-Oxide Steel	25/64"	1/4"	Partially Threaded	70,000	000000000	0000


		3"	1 1/4"									1/2"	Black-Oxide Steel	11/32"	1/4"	Partially Threaded	60,000	000000000	0000
		3 1/2"	1 1/4"									1/2"	Black-Oxide Steel	25/64"	1/4"	Partially Threaded	70,000	000000000	00000