Ceramic Posts | McMaster-Carr

Filter by

System of Measurement

Length

Thread Size

Material

Threading

Threaded on Both Ends

Shape

Round

Gender

Female

Maximum Temperature

500° F or greater

Performance

Electrically Insulating

Mount Type

Voltage Rating

Color

Thread Length

Dielectric Strength

RoHS

Minimum Temperature

REACH

DFARS Specialty Metals

Exempt

Tensile Strength

Less than 10,000 psi

Finish

Glazed

Export Control Classification Number (ECCN)

EAR99

Thread Fit

Unified Standard Class 1B

Hardness

Mohs 7.5

Forward

How can we improve?

39 Products

Electrical-Insulating Female Threaded Standoffs

Our best electrically insulating standoffs. They prevent electrical currents from passing through enclosures and conductive surfaces. These standoffs are often installed in circuit-breaker housings and semiconductors.

Round


	Fully Threaded	Threaded on Both Ends

High-Temperature Grade L5 Ceramic—Our most heat-resistant standoffs, even at blistering temperatures up to 1700° F. However, ceramic is brittle and can crack under mechanical stress.

	Lg.	OD	Thread Lg.	Min. Thread Lg.	Dielectric Strength, V/mil	Voltage Rating	Temp. Range, ° F		Each
High-Temperature Grade L5 Ceramic







			6-32

			1/4"	1/4"	Fully Threaded	1/4"	—	275	Not Rated	50 to 1,700	000000000	00000


			3/8"	3/8"	Threaded on Both Ends	—	1/8"	275	Not Rated	50 to 1,700	000000000	0000
			1/2"	1/4"	Threaded on Both Ends	—	3/16"	275	Not Rated	50 to 1,700	000000000	0000
			1/2"	3/8"	Threaded on Both Ends	—	1/8"	275	Not Rated	50 to 1,700	000000000	0000
			1/2"	1/2"	Threaded on Both Ends	—	5/32"	275	Not Rated	50 to 1,700	000000000	0000
			3/4"	1/4"	Threaded on Both Ends	—	1/4"	275	Not Rated	50 to 1,700	000000000	0000
			3/4"	3/8"	Threaded on Both Ends	—	1/4"	275	Not Rated	50 to 1,700	000000000	0000
			3/4"	1/2"	Threaded on Both Ends	—	1/4"	275	Not Rated	50 to 1,700	000000000	0000
			1"	1/4"	Threaded on Both Ends	—	3/8"	275	Not Rated	50 to 1,700	000000000	0000
			1"	3/8"	Threaded on Both Ends	—	3/8"	275	Not Rated	50 to 1,700	000000000	0000
			1"	1/2"	Threaded on Both Ends	—	3/8"	275	Not Rated	50 to 1,700	000000000	0000


			1 1/4"	1/4"	Threaded on Both Ends	—	3/8"	275	Not Rated	50 to 1,700	000000000	0000
			1 1/2"	1/4"	Threaded on Both Ends	—	3/8"	275	Not Rated	50 to 1,700	000000000	0000
			1 1/2"	3/8"	Threaded on Both Ends	—	3/8"	275	Not Rated	50 to 1,700	000000000	0000
			1 1/2"	1/2"	Threaded on Both Ends	—	9/16"	275	Not Rated	50 to 1,700	000000000	0000
			2"	1/2"	Threaded on Both Ends	—	1/2"	275	Not Rated	50 to 1,700	000000000	0000
			2 1/2"	1/2"	Threaded on Both Ends	—	1/2"	275	Not Rated	50 to 1,700	000000000	0000
			3"	1/2"	Threaded on Both Ends	—	3/8"	275	Not Rated	50 to 1,700	000000000	00000




					8-32

					1/2"	3/8"	Threaded on Both Ends	—	5/32"	275	Not Rated	50 to 1,700	000000000	0000


					3/4"	3/8"	Threaded on Both Ends	—	3/16"	275	Not Rated	50 to 1,700	000000000	0000
					1"	3/8"	Threaded on Both Ends	—	3/8"	275	Not Rated	50 to 1,700	000000000	0000
					1 1/2"	3/8"	Threaded on Both Ends	—	3/8"	275	Not Rated	50 to 1,700	000000000	0000




							1/4"-20

							1"	3/4"	Threaded on Both Ends	—	3/8"	275	Not Rated	50 to 1,700	000000000	0000


							1"	1"	Threaded on Both Ends	—	3/8"	275	Not Rated	50 to 1,700	000000000	00000
							1 1/2"	3/4"	Threaded on Both Ends	—	3/8"	275	Not Rated	50 to 1,700	000000000	0000
							1 1/2"	1"	Threaded on Both Ends	—	1/2"	275	Not Rated	50 to 1,700	000000000	00000
							1 1/2"	1 1/4"	Threaded on Both Ends	—	5/8"	275	Not Rated	50 to 1,700	000000000	00000
							2"	3/4"	Threaded on Both Ends	—	3/4"	275	Not Rated	50 to 1,700	000000000	0000
							2"	1"	Threaded on Both Ends	—	5/8"	275	Not Rated	50 to 1,700	000000000	00000
							2"	1 1/4"	Threaded on Both Ends	—	5/8"	275	Not Rated	50 to 1,700	000000000	00000
							2 1/2"	3/4"	Threaded on Both Ends	—	3/4"	275	Not Rated	50 to 1,700	000000000	00000
							3"	3/4"	Threaded on Both Ends	—	3/4"	275	Not Rated	50 to 1,700	000000000	00000
							3"	1"	Threaded on Both Ends	—	5/8"	275	Not Rated	50 to 1,700	000000000	00000


3"							1 1/4"	Threaded on Both Ends	—	5/8"	275	Not Rated	50 to 1,700	000000000	00000
3 1/2"	3/4"						Threaded on Both Ends	—	3/4"	275	Not Rated	50 to 1,700	000000000	00000
4"	3/4"						Threaded on Both Ends	—	3/4"	275	Not Rated	50 to 1,700	000000000	00000
4"	1"						Threaded on Both Ends	—	5/8"	275	Not Rated	50 to 1,700	000000000	00000
4"	1 1/4"						Threaded on Both Ends	—	5/8"	275	Not Rated	50 to 1,700	000000000	00000
5"	1 1/4"	Threaded on Both Ends					—	5/8"	275	Not Rated	50 to 1,700	000000000	00000