DIN 986 Locknuts | McMaster-Carr

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Nut Type

Cap

Hex

Locknut

System of Measurement

Thread Size

Height

Locking Type

Material

Fastener Strength Grade/Class

Thread Depth

Thread Pitch

Finish

Cap Nut Profile

Width

Thread Direction

Specifications Met

Thread Type

Drive Style

Performance

Fastener Strength Rating

Low

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

REACH

Compliant

Export Control Classification Number (ECCN)

EAR99

Insert Maximum Temperature

245° F

RoHS

Compliant

Thread Spacing

Coarse

DFARS Specialty Metals

Thread Fit

8 Products

Nylon-Insert Cap Nuts

Get the protection of a cap nut with the vibration resistance of a locknut. These nuts not only conceal protruding screw threads, they also have a nylon insert that grips the screw to prevent loosening from moderate vibration. However, the insert may become brittle if exposed to high temperatures. Nuts are reusable a handful of times, but their holding power decreases with each use.

Low-Strength Steel

Rated Grade 2, Class 6, or lower, these nuts are about half as strong as medium-strength steel nuts. Use them with screws that have a similar strength rating to avoid stripping threads during installation.

Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.

	Thread Dp., mm	Wd., mm	Ht., mm	Fastener Strength Grade/Class	Specs. Met	Insert Max. Temp., ° F	Pkg. Qty.		Pkg.
Zinc-Plated Steel



	M4 × 0.7 mm	2.3	7	9.6	Class 6	DIN 986	245	50	90582A111	000000


	M5 × 0.8 mm	3.5	8	10.5	Class 6	DIN 986	245	25	90582A112	0000
	M6 × 1 mm	3.9	10	12	Class 6	DIN 986	245	25	90582A113	0000
	M8 × 1.25 mm	5.2	13	14	Class 6	DIN 986	245	25	90582A114	00000
	M10 × 1.5 mm	6.4	16	18	Class 6	DIN 986	245	10	90582A115	00000
	M12 × 1.75 mm	8.3	18	23	Class 6	DIN 986	245	5	90582A116	0000
	M16 × 2 mm	11.3	24	28	Class 6	DIN 986	245	1	90582A117	0000
	M20 × 2.5 mm	13.5	30	35	Class 6	DIN 986	245	1	90582A118	0000