Fasteners
Fasteners
Unicorn Metal Industries is a trusted manufacturer and stockist of high-tensile Industrial Fasteners. From standard bolts to custom-engineered studs, our fasteners are designed to provide secure, vibration-resistant connections in critical infrastructure, heavy machinery, and structural frameworks.
We specialize in Stainless Steel Fasteners compliant with ASTM A193 / A194 and ISO 3506. Our range includes grades like 304 (B8), 316 (B8M), 310, and 321, offering superior corrosion resistance for marine, chemical, and food processing applications.
For high-strength structural requirements, we supply Carbon & Alloy Steel Fasteners (ASTM A325, A490, A193 B7, A194 2H). These high-grade bolts and nuts are heat-treated to withstand extreme tensile loads and high-temperature environments commonly found in power plants and refineries.
Our portfolio also includes Duplex, Super Duplex, and Nickel Alloy Fasteners (Inconel, Monel, Hastelloy) for the most severe service conditions. We offer a complete range of Bolts (Hex, Allen, Flange), Nuts (Hex, Lock, Wing), Washers (Flat, Spring, Taper), and Threaded Rods in Metric and Imperial (UNC/UNF) thread forms.
Specification Table of Fasteners
| Specification | Details |
|---|---|
| Product | High Tensile Industrial Fasteners |
| Types (Bolts) | Hex Head, Socket Head Cap (Allen), Flange, Eye, U-Bolt, J-Bolt, Carriage, Anchor Bolt |
| Types (Nuts) | Hex, Heavy Hex, Nylock, Lock (Jam), Wing, Cap (Dome), Flange, Square, Weld Nut |
| Types (Washers) | Plain (Flat), Spring (Split), Star, Taper, Belleville (Disc Spring), Tab Washer |
| Standards (Dimensional) | DIN 931/933/912/934, ISO 4014/4017, ASME B18.2.1 (Bolts), ASME B18.2.2 (Nuts) |
| Material Grades (Stainless) | AISI 304 (A2-70/80), 316 (A4-70/80), 316L, 310S, 321, 904L, 17-4PH |
| Material Grades (High Temp/Pressure) | ASTM A193 Grade B7, B7M, B16 (Bolts/Studs) | ASTM A194 Grade 2H, 2HM, 4, 7 (Nuts) |
| Material Grades (Carbon Steel) | Grade 4.6, 5.6, 8.8, 10.9, 12.9 (High Tensile) |
| Material Grades (Exotic) | Duplex (UNS S31803), Super Duplex (S32750), Inconel 600/625/718, Monel 400/K500, Hastelloy C276, Titanium |
| Size Range | M3 to M100 (Metric) | 1/4" to 4" (Imperial) |
| Threads | Metric Coarse, Metric Fine, UNC (Unified National Coarse), UNF (Fine), BSW (Whitworth), ACME |
| Surface Coatings | Black Phosphate, Zinc Plated (Blue/Yellow/White), Hot Dip Galvanized (HDG), PTFE (Xylan/Teflon), Cadmium, Geomet |
| Applications | Construction, Oil & Gas Piping, Marine, Automotive, Heavy Machinery, Power Transmission Towers |
Industrial Bolts
Industrial Bolts are the primary fasteners for heavy-duty connections. We stock a vast range including Hex Bolts for general use, Allen (Socket Head) Bolts for recessed applications, and Flange Bolts for vibration resistance.
Industrial Nuts
Industrial Nuts provide the clamping force in a bolted joint. Our inventory covers standard Hex Nuts, Nylock Nuts for vibration proofing, Heavy Hex Nuts for high-pressure flanges, and Dome Nuts for aesthetic finishing.
Stud Bolts & Rods
Stud Bolts are fully threaded rods used primarily with two nuts to connect flanges in high-pressure pipelines. They allow for easier removal in corroded environments compared to standard bolts. We supply them cut-to-size or in standard lengths.
Washers
Washers are critical for distributing load and preventing surface damage. We supply Plain Washers for load spreading, Spring (Split) Washers for vibration resistance, and Taper Washers for structural channels and I-beams.
"Seamless flow, solid strength. Unicorn Metal Industries supplies precision-engineered butt weld fittings that ensure minimal turbulence and maximum structural integrity for the world's most extensive piping networks."