Hex Jam Nuts

South Coast Fasteners, Inc. supplies hex jam nuts designed for applications where a thinner profile is needed. Hex jam nuts are commonly used as locknuts, spacers, or in tight assemblies where a standard hex nut would not fit. South Coast Fasteners provides hex jam nuts in multiple grades, coatings, and metric standards to ensure reliable fastening across construction, automotive, and industrial equipment.

Your Supplier for High-Performance Industrial Fasteners

If you're looking for a trusted supplier of wholesale industrial fasteners, South Coast Fasteners is your solution. Contact our Anaheim, CA office to learn more about our product options and how we can support your project needs. For helpful service, fast order turnaround, and high-quality fasteners in bulk or small batches, choose South Coast Fasteners.

Types of Hex Jam Nuts We Offer

A563 Grade A Finished Hex Jam Nut, Plain

These plain jam nuts are manufactured to A563 Grade A standards. With their thinner design, they are ideal for applications where space is limited or where two nuts are tightened together to prevent loosening. Their plain finish makes them best suited for indoor or protected environments.

A563 Grade A Finished Hex Jam Nut, Zinc CR+3

These nuts combine the compact design of jam nuts with zinc clear plating for corrosion resistance. They are often used in light construction, machinery, and assemblies exposed to moisture. The zinc finish adds both protection and a clean metallic appearance.

A563 Grade A Finished Hex Jam Nut, Zinc Yellow CR+6

These Grade A jam nuts are finished with a bright yellow coating for visibility and added corrosion resistance. They are commonly applied in electrical assemblies, light structural work, and equipment maintenance where fastener identification is valuable.

A563 Grade A Finished Hex Jam Nut, HDG

Hot-dip galvanized jam nuts provide strong corrosion resistance for outdoor or exposed use. They are well-suited for fencing, utility projects, and steel construction where long service life in harsh environments is essential.

A563 Grade A Heavy Hex Jam Nut, Plain

These heavy hex jam nuts offer more bearing surface than standard jam nuts. Their plain finish makes them economical for shop fabrication or indoor use. They are frequently applied as spacers or locknuts in structural and industrial settings.

A563 Grade A Heavy Hex Jam Nut, Zinc CR+3

Heavy hex jam nuts with zinc clear plating provide additional corrosion protection while offering a wider surface area. They are ideal for equipment, construction, and structural frameworks that need secure fastening in environments exposed to moisture.

Grade 5 Finished Hex Jam Nut, Plain

Grade 5 plain jam nuts provide higher strength than Grade A versions. Their compact size makes them useful in automotive repair, machinery, and assembly lines where locking action is required. The plain finish is best for clean, controlled environments.

Grade 5 Finished Hex Jam Nut, Zinc CR+3

These Grade 5 jam nuts pair higher strength with zinc clear plating for corrosion protection. They are a reliable choice in automotive, agricultural, and light industrial projects where both durability and protection against rust are required.

Grade 8 Finished Hex Jam Nut, Plain

Grade 8 jam nuts are hardened for maximum strength. Their plain finish makes them practical for indoor use in heavy-duty machinery, steel construction, and equipment manufacturing. They are often used in conjunction with standard hex nuts to prevent loosening under vibration.

Grade 8 Finished Hex Jam Nut, Zinc Yellow CR+6

These nuts provide Grade 8 strength with a zinc yellow coating for added corrosion resistance and visibility. They are widely applied in structural steel, construction, and industrial machinery where secure fastening and easy identification are important.

Hex Panel Nut, Zinc CR+3

Panel nuts are thinner and designed for fastening in sheet metal or tight clearances. The zinc clear finish provides moderate corrosion resistance, making them suitable for electrical panels, enclosures, and light-duty assemblies.

Metric Class 04 Hex Jam Nut, DIN 439B, Plain

These metric jam nuts comply with DIN 439B standards in Class 04 strength. They are light-duty fasteners designed for European and international equipment. Their plain finish makes them most effective in clean, indoor conditions.

Metric Class 04 Hex Jam Nut, DIN 439B, Zinc CR+3

Metric jam nuts with zinc clear plating add corrosion resistance to the Class 04 design. They are common in light machinery, OEM equipment, and international construction projects requiring metric specifications.

Material Options

South Coast Fasteners stocks hex jam nuts in materials designed to balance compact size with the strength required for locking and spacing functions.

Low and Medium Carbon Steel (Grades A, 5, and 8)

These steels provide varying levels of strength, with Grade A suited for light-duty, Grade 5 for moderate fastening, and Grade 8 for maximum load capacity. Each grade supports specific needs across construction, automotive, and industrial assembly.

Hardened Steel (Heavy Hex and Grade 8)

Hardened materials resist deformation and loosening under vibration. They are critical in heavy machinery, structural steelwork, and applications demanding long-term strength.

Metric Class 4 Steel

Metric jam nuts are manufactured to international standards for lighter-duty use. They provide consistency and compatibility in European and global manufacturing environments.

Available Finishes

South Coast Fasteners offers hex jam nuts in finishes that protect against corrosion and support identification in assemblies.

Plain

Plain jam nuts are economical and effective in indoor or controlled environments where coatings are unnecessary.

Zinc Clear CR+3

This finish provides moderate corrosion resistance with a clean metallic look. It is widely used in automotive, HVAC, and light industrial equipment.

Zinc Yellow CR+6

The yellow finish enhances corrosion resistance while improving visibility for inspection. It is common in electrical, construction, and mechanical assemblies.

Hot-Dip Galvanized

This coating provides superior protection against weathering and is used in outdoor construction, fencing, and utility steelwork.

Why Choose South Coast Fasteners?

South Coast Fasteners provides hex jam nuts designed to handle the unique needs of locking and spacing in tight or vibration-prone assemblies. Our broad inventory covers multiple grades, sizes, and finishes, ensuring every project gets the right fit. Customers rely on us for practical expertise and dependable supply.

Order Hex Jam Nuts Online Today

Order hex jam nuts online today with South Coast Fasteners and get the right grade, finish, and size delivered quickly. Whether you need light-duty fasteners for electrical panels or high-strength jam nuts for construction equipment, our stocked inventory ensures your project moves forward without delay.