2014 ARP Catalog

HEX NUTS Constructed from the finest aerospace-quality materials, these hex nuts are available in most sizes to meet your needs. All hex nuts meet ARP’s exacting quality control standards and are black oxided. All hex nuts are rated 180,000 psi tensile strength.

Thread Size

Socket Size

Hex (1 PC-Bulk)

Hex (2 PC-Pack)

Hex (10 PC-Pack)

Hex SS (1 PC-Bulk)

1/4-28 (1)

7/16

200-8601

200-8621

200-8631

5/16-18 (2)

1/2

301-8304

301-8324

301-8344

401-8304

5/16-24

3/8

200-8614

200-8644

200-8674

400-8614

5/16-24

1/2

200-8602

200-8622

200-8632

BULK FASTENERS 11/32-24

1/2

200-8603

200-8623

200-8633

3/8-16 (2)

9/16

200-8704

200-8724

200-8734

400-8704

3/8-24

9/16

200-8604

200-8624

200-8634

400-8604

7/16-14 (2)

5/8

301-8305

301-8325

301-8345

401-8305

7/16-20

5/8

200-8605

200-8625

200-8635

400-8605

7/16-20

11/16

200-8606

200-8626

200-8636

1/2-20

3/4

200-8607

200-8627

200-8637

400-8607

9/16-18

7/8

200-8608

200-8628

200-8638

(1) cad-plated (2) flanged hex nut

STANDARD & NYLOC 5-PACKS To compliment ARP “bulk” 5-pack chrome moly and stainless steel fasteners we have assembled matching groups of nuts. They, too, come in convenient 5-pack skin cards. Take your pick from stainless steel and black oxide finished standard nuts or stainless steel Nyloc and cad plated Nyloc self-locking nuts.

Black Oxide Hex

Stainless Hex

Cad Plated Nyloc Hex

Thread Size

Stainless Nyloc Hex

STANDARD THREAD

1/4-20

400-8651

200-8651

400-8661

200-8661

5/16-18

400-8652

200-8652

400-8662

200-8662

3/8-16

400-8654

200-8654

400-8664

200-8664

7/16-14

400-8656

200-8656

400-8666

200-8666

1/2-13

400-8657

200-8657

400-8667

200-8667

FINE THREAD

1/4-28

400-8751

400-8761

400-8771

5/16-24

400-8752

400-8762

3/8-24

400-8754

400-8764

7/16-20

400-8756

400-8766

1/2-20

400-8757

400-8767

100

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