Left-Hand Threaded Hex Nuts

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Pitch Thread Pitch

	Material Material

	Finish Finish

Zinc Plated

Black Oxide

Zinc Yellow-Chromate Plated

	Nut Type Nut Type


Hex	Locknut

Coupling

	Hex Nut Profile Hex Nut Profile


Standard	Thin

Extra Wide

	Fastener Strength Grade/Class Fastener Strength Grade/Class


Grade 2	Grade 5

Grade 8	Class 04

Class 5	Class 8

	Height Height

	Width Width

	Thread Spacing Thread Spacing

Coarse

Fine

Extra Fine

	Thread Type Thread Type

	Thread Fit Thread Fit

Class 2B

Class 6H

	Specifications Met Specifications Met

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Hex Length Hex Length

	Hex Size Hex Size

	Thread Length Thread Length

	Length Length

	Hardness Hardness

Rockwell B56

Rockwell B65

Rockwell B80

	Pitch Pitch

460 Products

About Nuts, Materials, and Finishes

Left-Hand Threaded Medium-Strength
Steel Hex Nuts—Grade 5

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion.

Metric Left-Hand Threaded
Medium-Strength Steel Hex Nuts

These metric nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion.

Left-Hand Threaded High-Strength Steel Hex Nuts

Tighten these nuts by turning them to the left; once fastened, they resist loosening from counterclockwise motion.

Left-Hand Threaded Low-Strength Steel Hex Nuts

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion.

Left-Hand Threaded 18-8 Stainless Steel Hex Nuts

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion.

Metric Left-Hand Threaded
18-8 Stainless Steel Hex Nuts

Tighten these nuts by turning them to the left; once fastened, they resist loosening from counterclockwise motion.

Left-Hand Threaded Super-Corrosion-Resistant
316 Stainless Steel Hex Nuts

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion.

Left-Hand Threaded 18-8 Stainless Steel Thin Hex Nuts

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion.

Left-Hand Threaded Super-Corrosion-Resistant
316 Stainless Steel Thin Hex Nuts

With threads that tighten to the left and made of 316 stainless steel, these nuts won’t loosen from counterclockwise motion in saltwater and corrosive environments. They’re half the height of standard hex nuts, so they fit where there’s low clearance.

Left-Hand Threaded Low-Strength Steel Thin Hex Nuts

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. They’re Grade 2 steel, so they can be used for fastening panels and other light duty fastening applications

Left-Hand Threaded
Medium-Strength Steel Thin Hex Nuts

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. They’re Grade 5 steel, so you can used these inch-sized nuts for most fastening applications.

Left-Hand Threaded Brass Thin Hex Nuts

These nuts tighten to the left and won’t loosen from counterclockwise motion.

Left-Hand Threaded Medium-Strength
Steel Extra-Wide Hex Nuts—Grade 5

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion.

Left-Hand Threaded High-Strength Steel
Center-Lock Distorted-Thread Locknuts—Grade 8

These locknuts tighten when turned to the left.

Left-Hand Threaded Low-Strength Steel Coupling Nuts

The left-hand threads on these coupling nuts resists loosening from counterclockwise vibration. Use in light duty applications.

Left-Hand to Right-Hand Female Hex Thread Adapters

Often called sleeve nuts, these thread adapters fasten parts with right-hand threads to parts with left-hand threads.

About Nuts, Materials, and Finishes