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Kelko Products


Diameters - Full Range of Sizes from 1/4" through 2 inch and M6 through M20

Lengths - Threading Capacity to 20 Feet

Materials - Stainless Steel types 303, 304, and 316, Low Carbon 1213, 1018, 1117, Medium Carbon 1141, 1045, High Carbon 4140, SAE J429 Grades 5, and 8, ASTM A307 Grade A, ASTM A193 Grades B7, B7M, B16, B8, B8 Class 2, ASTM A345 Grade BD, Brass, Naval Brass, Silicon Bronze, Copper, Monel 400, Carpenter 20.


Finishes - Zinc, Zinc Phosphate, Blue, Clear, Black, Yellow, Olive Chromate Conversions, Black Oxide, Cadmium, Nickel, Phosphate, and Passivation.


Thread Fits - UNC 2A, UNC3A, UNC5A, UNF2A, UNF3A, UNF5A, NC5HF, NC5CSF, NC5ONF, Metric, Left Hand Threads and Special Pitch Diameters.


Secondary Operations - Threading, Heat Treating, Plating, Drilling, Vent Slots, Screwdriver Slots, Hex or Square Collars, Turned Down Studs, Wrench Flats, Hex Body, Turning, and Milling.


Certifications - Mill Certs on File for Finished Materials, Chemistry Certs on File for Green Materials, Heat Treat and Plating Certs Available, Actual Chemistry and Physical Analysis Performed by an Independent Testing Lab, Certifications of Compliance.

If you need a stud, call us!


Kelko Products Company has an extensive inventory of machines to handle our customer requirements and to meet the ever-changing demands of the fastener industry. We are compliant with the Fastener Quality Act of 1999.


Our studs are available in many sizes & alloys from 1/4 in. to 2 in. diameter in Low Carbon Steel, A307 Grade A, 1018, 1141, 4140, 1117, Stainless Steel types 303, 304, and 316 as well as Brass, Silicon, Bronze, and Monel. Kelko Products can supply parts in SAE J429 grades 5 and 8, ATSM A193 grades B7, B7M & B16, and B8.

Tap End Studs

Double End Studs

Stainless Steel Studs

B7 Studs


Multiple Diameters

Single Point Threading

Hex Collars

Secondary Operations

Chemical Resistant Coatings

Corrosion Resistant Coatings

Custom Plating & Chromate Finishes

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