5-Point Bolts | McMaster-Carr

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Fastener Head Type

Pentagon

Drive Style

External Pentagon

Pentagon

System of Measurement

Thread Size

Length

Material

Threading

Head Width

Socket Shape

Head Height

Thread Direction

Drive Size

Thread Spacing

Export Control Classification Number (ECCN)

EAR99

Thread Fit

Unified Standard Class 2A

REACH

RoHS

Thread Type

Overall Length

Square Drive Size

Finish

Tensile Strength

30,000 psi to 99,999 psi

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

Hardness

20 Products

Pentagon Head Screws

The five-sided head provides tamper resistance by making these screws difficult to remove without special tools. Install or remove with 5-point sockets (sold separately). Also known as penta-bolts and 5-point screws, they are commonly used on water and gas valves. They are made from 18-8 stainless steel, which has good chemical resistance and may be mildly magnetic. Length is measured from under the head.

				Head
	Lg.	Threading	Thread Spacing	Wd.	Ht.	Drive Size	Tensile Strength, psi		Each
18-8 Stainless Steel







				3/8"-16 Threads

				3/4"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A600	00000


				1"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A130	0000
				1 1/2"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A170	0000
				2"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A610	0000
				2 1/4"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A620	0000
				2 1/2"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A630	0000
				3"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A640	0000
				4"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A650	0000




						1/2"-13 Threads

						1 1/2"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A450	0000


						1 3/4"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A660	0000
						2"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A670	0000
						2 1/2"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A680	0000
						3"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A690	0000
						4"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A700	0000
						4 1/2"	Fully Threaded	Coarse	7/8"	5/16"	13/16"	70,000	98130A710	0000

Sockets

		Each
1/2" Square Drive 5-Point Socket	5491A35	000000
3/8" Square Drive 5-Point Socket	5544A8	00000

5-Point Sockets

5-Point

Socket

These sockets fit the nuts found on water and gas valves. Use with hand-driven tools only.

Black-Oxide Steel

					Standard Clearance
	Drive Size	OD	Socket Shape	For Drive Style	Overall Lg.		Each
3/8" Square Drive



		13/16"	1 1/8"	5-Point	External Pentagon	1 1/16"	5544A8	000000


		1/2" Square Drive



				13/16"	1 1/8"	5-Point	External Pentagon	2"	5491A35	00000

5-Point Impact Sockets

Turn 5-point tamper-resistant nuts and bolts often found on water and gas valves. The walls of the sockets are thicker and more flexible than standard sockets, so they can handle the high torque and force of impact tools without cracking.

Black-Oxide Steel

		Clearance Dp.					Standard Clearance
	Drive Size	Nut	Bolt	OD	Socket Shape	For Drive Style	Overall Lg.		Each
1/2" Square Drive



		13/16"	13/16"	13/16"	1 9/32"	5-Point	External Pentagon	2"	93278A110	000000

Pentagon Bits

These unique five-point bits turn pentagon screws. Use them to access manhole covers, valve boxes, and other types of public infrastructure.

Hex Shank—Also known as insert bits, these snap into hand tools. If you want to use them with power tools, attach a bit adapter (not included).

Steel—Best for dry environments, since moisture will cause these bits to rust.

		Each
For Hand Tools







	1/4" Hex Shank Size

	No. 6, No. 7, No. 8	1"	Steel	2722N11	00000


	No. 8, No. 9, No. 10	1"	Steel	2722N12	0000