DIN 986 Locknuts | McMaster-Carr

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Nut Type

Cap

Hex

Locknut

System of Measurement

Thread Size

Locking Type

Height

Thread Depth

Fastener Strength Grade/Class

Material

Thread Pitch

Cap Nut Profile

Finish

Width

Drive Style

Specifications Met

Thread Direction

Thread Type

Performance

Thread Spacing

Fastener Strength Rating

Low

REACH

Compliant

RoHS

Compliant

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

Thread Fit

Metric Class 6H

Insert Maximum Temperature

245° F

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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	ISO Class 6	DIN 986	245	50	000000000	000000


	M5 × 0.8 mm	3.5	8	10.5	ISO Class 6	DIN 986	245	25	000000000	0000
	M6 × 1 mm	3.9	10	12	ISO Class 6	DIN 986	245	25	000000000	0000
	M8 × 1.25 mm	5.2	13	14	ISO Class 6	DIN 986	245	25	000000000	00000
	M10 × 1.5 mm	6.4	16	18	ISO Class 6	DIN 986	245	10	000000000	00000
	M12 × 1.75 mm	8.3	18	23	ISO Class 6	DIN 986	245	5	000000000	0000
	M16 × 2 mm	11.3	24	28	ISO Class 6	DIN 986	245	1	000000000	0000
	M20 × 2.5 mm	13.5	30	35	ISO Class 6	DIN 986	245	1	000000000	0000