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QA1 KML4S K Series 3-Piece Carbon Rod End 1/4in. Bore 1/4-28 LH Male Stud

Manufacturer

Picture for manufacturer QA1 Precision Products

Part Number

KML4S
9 reviews
Sale Price

$8.07

Estimated ship date Monday, November 23

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Product Details

The QA1 KML4S is a K Series three-piece carbon steel rod end featuring a male left-hand 1/4"-28 threaded stud configuration and a 1/4" (0.250 in.) bore. Designed for precision steering and suspension linkage applications, this rod end heim joint delivers reliable performance in both street and motorsport environments.

Construction & Materials:

  • Ball: 52100 bearing steel — heat treated, hard chrome plated, and precision ground for long service life
  • Race: Alloy steel, corrosion and wear resistant
  • Body: Carbon steel (alloy steel at manufacturer's option), protective coated for corrosion resistance

Key Specifications:

  • Series: K Series — traditional 3-piece design
  • Thread Type: Male, Left-Hand (LH)
  • Thread Size: 1/4"-28
  • Bore Diameter: 0.250 in. (1/4 in.)
  • Configuration: Stud (S)

Key Features:

  • Traditional three-piece construction for proven durability
  • Available in right- and left-hand thread options across the KM Series line
  • Stud configuration eliminates the need for a separate fastener
  • Protective body coating resists corrosion in demanding environments
  • Precision-ground hard chrome ball for smooth articulation and tight tolerances

The QA1 KML4S rod end is well-suited for use in custom steering linkages, suspension geometry corrections, panhard bars, and other chassis fabrication applications requiring a compact, stud-style heim joint with left-hand threading.

Products specifications

Grease Fitting

No

Heat-Treated

Yes

Jam Nut Included

No

Notes

Features 1/4-28 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

0.375 in.

Rod End Centerline Length

1.562 in.

Rod End Construction

3-piece

Rod End Finish

Zinc plated

Rod End Head Bore Size

0.250 in.

Rod End Head Diameter

0.750 in.

Rod End Head Width

0.375 in.

Rod End Material

Carbon steel

Rod End Misalign Angle (degrees)

16 degrees

Rod End Static Load Capacity

2,158 lbs.

Rod End Style

Metal to metal

Rod End Thread Size

1/4-28 LH in.

Size

1/4-1/4

Thread

Left Hand

Thread Length

1.000 in.

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