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QA1 KMR7-8S K Series 3-Piece Carbon Steel Rod End 7/16in. Bore 1/2in.-20 RH Male Stud

Manufacturer

Picture for manufacturer QA1 Precision Products

Part Number

KMR7-8S
7 reviews
Sale Price

$14.79

Estimated ship date Sunday, November 22

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Product Details

The QA1 KMR7-8S is a K Series three-piece carbon steel male rod end engineered for precision and high-load applications in racing, suspension, and industrial builds. Featuring a 7/16 in. (0.4375 in.) bore and a 1/2 in.-20 right-hand male thread, this stud-style rod end delivers higher misalignment capability compared to standard bolt-mounted rod ends.

QA1's KM Series is built around a higher ball-to-race conformity design, which produces tighter tolerances for applications where precision is critical. The pre-attached stud simplifies installation and improves angular misalignment range over conventional bolt-through configurations.

Key Features:

  • Series: K Series (KM) — three-piece traditional design
  • Bore: 7/16 in. (0.4375 in.)
  • Thread: 1/2 in.-20 UNF, right-hand (RH), male
  • Housing Width: 0.437 in.
  • Ball Width: 0.562 in.
  • Ball Material: 52100 Bearing Steel — heat treated, hard chrome plated, precision ground
  • Race Material: Alloy steel — corrosion and wear resistant
  • Body Material: Carbon steel — protective coated for corrosion resistance
  • Configuration: Male stud — pre-attached RH stud for higher misalignment than bolt-mounted applications
  • Thread Direction: Right-hand (RH)

The KMR7-8S is part of QA1's comprehensive lineup of inch-series rod ends, available in right- and left-hand thread configurations and a range of bore sizes. Grease fitting (zerked) variants are also available within the KM Series family.

Products specifications

Grease Fitting

No

Heat-Treated

Yes

Jam Nut Included

No

Notes

Features 7/16-20 RH in. male threaded stud built into the rod end head. Only rod end ball and race are heat-treated.

Quantity

Sold individually.

Rod End Attachment

Male threads

Rod End Ball Width

0.562 in.

Rod End Centerline Length

2.438 in.

Rod End Construction

3-piece

Rod End Finish

Zinc plated

Rod End Head Bore Size

0.438 in.

Rod End Head Diameter

1.312 in.

Rod End Head Width

0.562 in.

Rod End Material

Carbon steel

Rod End Misalign Angle (degrees)

12 degrees

Rod End Static Load Capacity

9,620 lbs.

Rod End Style

Metal to metal

Rod End Thread Size

7/16-20 RH in.

Size

7/16-1/2

Thread

Right Hand

Thread Length

1.500 in.

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