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Industries · Oil and Gas

Bolting for the pressure envelope.

Certified A193 and A320 bolting for upstream, midstream, and downstream service.

From refinery flange bolting to high-pressure process piping, oil and gas demands traceable metallurgy and tight torque discipline. We stock the grades, cut the studs, and ship the paperwork — so your turnaround stays on the clock.

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Offshore · Upstream · Midstream · Downstream

Industry Overview

Refinery and process bolting, stocked for turnaround schedules.

Flange bolting for high-pressure piping, anchor bolts for compressor skids, and custom alloy studs for exchanger heads — every connection in an oil and gas facility carries a test-procedure number and an MTR trail.

We run B7/B7M, B8/B8M, and L7/L7M bolting through the same line, with hot-dip galvanizing, Xylan, and PTFE coating in-house. When your turnaround schedule compresses, we ship bagged and tagged to the valve number.

Products engineered for oil and gas service.

05 · Core product lines

B7 & B7M Stud Bolts

Standard alloy bolting for flanges rated to 800°F; B7M when the spec calls for hardness control.

B8/B8M Stainless Studs

304 and 316 stainless bolting for cryogenic, chloride, and chemical-exposure flanges.

L7 Low-Temp Studs

Impact-tested alloy bolting for LNG, ethylene, and cold-climate pipeline service.

Heavy Hex Head Bolts

A193 B7/B8M heavy hex for structural pipe supports, pig traps, and vessel skirts.

Custom Alloy & Coated

Inconel 625/718, Monel K500, and Xylan 1424-coated fasteners — built to print.

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Fastener lines most used in Oil, Gas & Chemical.

Stud Bolts & Threaded Rod

B7, B8, B16 · cut to length

Industrial Fasteners

A193, Gr 5/8, heavy hex

Anchor Bolts

F1554 · headed, bent, rod

Custom Products

Built to your print

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Case Studies

Oil and gas fasteners at work.

Case 01

California refinery exchanger turnaround.

Problem

A California refinery needed 240 sets of B8M stud bolts for an exchanger retrofit — fully tagged, MTR-matched, and on the dock in seven days.

Solution

We pulled 316 stainless from stock, cut and chamfered to length per the flange schedule, and bagged per flange tag number with MTRs and Cert of Conformance per set.

Results

All 240 sets arrived ready to bolt up with zero discrepancies. The turnaround finished on the dispatched schedule.

“Tagged to our valve list, not a PO line. That saved us a day of sorting on the deck.”

— Turnaround Planner, California refinery

Case 02

California petrochemical unit expansion.

Problem

A California petrochemical expansion required L7 low-temp studs and Inconel 625 bolting across 18 custom lengths, all on a shared delivery date.

Solution

We consolidated alloy sourcing, ran the cuts in two parallel batches, and Xylan-coated the carbon bolting before final assembly at our Benicia facility.

Results

All 18 lengths shipped on one truck, one BOL. The fabricator rolled the sets directly to the pipe rack without re-inspection.

“One call, one truck, one set of certs. That's how refinery work should feel.”

— Procurement Lead, California petrochemical operator

Specification Library

ASTM · SAE · ANSI · ISO

GRADEDESCRIPTIONPDF

A193 B7Alloy steel bolting, high-temp→

A193 B8M316 stainless bolting→

A325Structural bolts, heavy hex→

F1554 55Anchor bolts, 55 ksi yield→

F593Stainless cap screws→

B18.2.1Square & hex bolts dim.→

SAE J429Mech. properties — Grade 5/8→

ISO 898-1Carbon/alloy metric properties→

Resources

Visit our Specification Library.

A comprehensive resource for fastener specifications across the various industries we service. These guides offer access to a wide array of specifications, standards, and technical resources.

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Why California Fastener

Why California Fastener for oil and gas.

Bay Area refineries have been our bread and butter for decades — Richmond, Martinez, Rodeo, Benicia, all within an hour of our dock. That experience shows up in the small stuff: MTRs that match the heat stamps, B7M on the shelf when the spec calls for sour service, bagging by flange tag, and a phone that's answered by someone who's bolted up a refinery before.

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Let’s build it together.

Send us your BOM and we'll do the rest.

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