Products

Zinc Plated Studs with Nuts

Standard Products

Sigma distributes Bolting to meet industry standards Hex bolts, washers, studs, cap screws, hex nuts, heavy hex nuts, lock nuts, jam nuts, coupling nuts, and slotted nuts in all SAE and ASTM grades. Sigma is your one stop source for all your bolting needs. We stock a wide array of fasteners in our 35,000+ square foot warehouse and we’ll arrange for convenient delivery.

Fastener Products

Anchor bolts
Bolts
Bent Eye Bolts
Cap Screws
Carriage Bolts
Elevator Bolts
Eye Bolts
Ferry Cap Screws
Flange Bolts
Heavy Hex Bolts
Hex Bolts
Hex Lag Screws
J-Bolts
Penta Bolts
Rod End Bolts
Step Bolts
Structural Bolts
Tap Bolts
Tension Control Bolts
Toggle Bolts
U-Bolts
Custom Threaded Products
Nuts
Castle Nuts
Clinching Nuts
Coupling Nuts
Finished Nuts
Heavy Hex Nuts
High Nuts
Jam Nuts
Lock Nuts
Slotted Nuts
Spring Nuts
Spherical Faced Nuts
Square Nuts
Wing NutsPins
Clevis Pins
Cotter Pins
Dowel Pins
Hairpin Clips
Hitch Pins
Lynch Pins
Taper PinsRivetsAll Thread Rod
Screws
Security Screws and Fasteners
Set Screws
Sockets
Button Socket Cap Screws
Flat Socket Cap Screws
Low Socket Cap Screws
Socket Cap Screws
Socket Shoulder BoltsStud Bolts
All Thread Studs
Collar Studs
Combo Studs
Double End Studs
Pad Studs
Tap End StudsTurbine BoltsWashers
Belleville Washers
Beveled Washers
Bonded Sealing Washers
Conical Washers
Fender Washers
Flat Washers
Load Indicating Washers
Lock Washers