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QA1 KMR3-4S K Series 3-Piece Carbon Steel Rod End 3/16 in. Bore 1/4-28 RH Male Stud

Manufacturer

Picture for manufacturer QA1 Precision Products

Part Number

KMR3-4S
6 reviews
Sale Price

$10.43

Estimated ship date Monday, November 23

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Fitment guaranteed

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Product Details

The QA1 KMR3-4S is a K Series 3-piece carbon steel rod end featuring a right-hand male threaded stud configuration with a 3/16 in. bore and a 1/4 in.-28 RH threaded stud built into the rod end head. Designed for performance suspension, steering, and linkage applications, this rod end delivers precision articulation and long-lasting durability in demanding environments.

Key Features:

  • Ball: 52100 bearing steel, heat treated, hard chrome plated, and precision ground for smooth, consistent movement
  • Race: Alloy steel construction, corrosion and wear resistant
  • Body: Carbon steel with protective coating for corrosion resistance
  • 3-piece construction for strength and reliability in high-load applications
  • Stud configuration: 1/4 in.-28 RH male threaded stud integrated into the head — no separate bolt required
  • Bore size: 3/16 in. (0.1875 in.)
  • Right-hand thread for standard installation
  • Available in inch dimensions for compatibility with standard hardware

The QA1 KM Series represents QA1's traditional three-piece carbon steel rod end line, trusted by racers and performance builders for its precise tolerances and consistent quality. QA1's ISO 9001-certified manufacturing processes ensure every rod end meets strict standards for dimensional accuracy and load performance.

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

0.312 in.

Rod End Centerline Length

1.562 in.

Rod End Construction

3-piece

Rod End Finish

Zinc plated

Rod End Head Bore Size

0.190 in.

Rod End Head Diameter

0.750 in.

Rod End Head Width

0.312 in.

Rod End Material

Carbon steel

Rod End Misalign Angle (degrees)

10 degrees

Rod End Static Load Capacity

2,158 lbs.

Rod End Style

Metal to metal

Rod End Thread Size

1/4-28 RH in.

Size

3/16-1/4

Thread

Right Hand

Thread Length

1.000 in.

Very competitive prices and fast FREE shipping! Will do business with Autoplicity again!

Prices were very fair, had to check back a few times to the listing to determine if item was sold in pairs and/or individually. Overall however the product looks good.

I bought gauges from here and it was the best price around. They shipped it quickly and it should be here soon. Ill buy from here again.

I placed an order with autoplicity on Saturday order number 10468 I got it today and installed my new banks ram air box and it is awesome. Thanks autoplicity my box from Banks looks like it just came off the shelf even after ups delivered it.

BEST PRICE AROUND, HANDS DOWN. Shipping was fast and communication was impeccable. THANKS FOR THE PROFESSIONALISM.

Had what I wanted at a very competitive price. Speed of which it was sent out for delivery was exellent.

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