Socket Head Cap Screws

January 22, 2017 by · Leave a Comment 

Socket Head Cap Screws

Socket Head Cap Screws

Standard and custom manufactured socket head cap screws.

Standard Socket Head Cap Screws

Sigma distributes quality fasteners – socket head cap screws, metric socket screws, flat head socket screws or button head socket screws. Also known as Allen head cap screws.

Custom and Modified Socket Head Cap Screws

If you specification requires a modified or custom socket head cap screw Sigma will deliver.

ASTM Material Selection Chart B7, B7M, L7, L7M, 660, 718 Inconel, 17-4 ph, MP35N

Available coated, plated and plain.

Custom Bolting to Print

April 19, 2016 by · Leave a Comment 

Custom Bolt

Sigma Fasteners specializes in manufacturing custom bolting products for Pressure Control, Petroleum Valve and oilfield equipment manufacturers.

Need a custom bolt manufactured for your company? Do you need a that non standard fasteners in a hurry? Simga Fasteners specilizes in custom bolting to meet your drawing, rev #, and specifications.  We manufacture custom fasteners in all types of ASTM metals. If you need custom bolts, custom nuts or custom stud bolts, Sigma will deliver them on time. We do carry standard fasteners, but as custom fastener manufacturer, our reputation is built on meeting your demanding fastener needs.

Have a drawing send it on to us, our experienced sales people will take care of your custom fastener needs. We specialize in large diameter  custom fastener for your products.

ASTM Material Selection Chart

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