Socket Head Cap Screw A socket head cap screw (also known as a socket cap screw or Allen bolt) is a type of fastener that features a cylindrical head with a recessed internal socket. These screws are driven using a hex key or Allen wrench, fitting into the hexagonal socket in the screw head. Socket head cap screws are widely used in various applications due to their strength, low profile, and ease of installation.
These screws are often preferred in applications where a strong, reliable connection is required, and where a flat or low-profile head is advantageous. The use of an Allen wrench or hex key allows for precise torque application during installation.
We at Royal Steel India manufacture a wide variety of Socket Head Cap Screws. There is a different types of screw used for different needs. Socket Head Cap Screws are used directly unlike the bolts which are used with nuts. Our Socket Head Cap Screws are available in different sizes, grades and shapes. Royal Steel India manufactures and exports high-quality industrial Socket Head Cap Screws. We are Exporters of the following Screws -Nylon Screws, Hex Screws, Self-Tapping Screws, Cheese Head Screws, CSK Slotted Screws, Pan Phillips Screws, Leg Screws, Socket Head Cap Screws and more. We are a well known and India's leading Industrial Socket Head Cap Screws Exporters in Mumbai.
| Socket Head Cap Screws sizes available | ||||
|---|---|---|---|---|
| 3/8″-16 x 1″ Grade 5 Zinc Finish | 1/2″-13 x 1-1/2″ Grade 5 Zinc Finish | 1/4″-20 x 1″ Grade 5 Zinc Finish | ||
| 3/8″-16 x 1-1/4″ Grade 5 Zinc Finish | 3/8″-16 x 1-1/2″ Grade 5 Zinc Finish | 1/4″-20 x 3/4″ Grade 5 Zinc Finish | ||
| 1/2″-13 x 2″ Grade 8 Yellow Zinc Finish | 1/2″-13 x 2″ Grade 5 Zinc Finish | 1/2″-13 x 1-1/2″ Grade 8 Yellow Zinc Finish | ||
| 5/8″-11 x 2″ Grade 8 Yellow Zinc Finish | 5/16″-18 x 1″ Grade 5 Zinc Finish | 3/8″-16 x 1″ Grade 8 Yellow Zinc Finish | ||
| 3/8″-16 x 1″ Grade 18-8 Stainless Steel | 3/8″-16 x 1-1/2″ Grade 8 Yellow Zinc Finish | 1/4″-20 x 1″ Grade 18-8 Stainless Steel | ||
| 5/8″-11 x 2″ Grade 5 Zinc Finish | 5/8″-11 x 2-1/2″ Grade 8 Yellow Zinc Finish | 3/8″-16 x 2″ Grade 5 Zinc Finish | ||
| 3/8″-16 x 1-1/4″ Grade 8 Yellow Zinc Finish | 1/4″-20 x 3/4″ Grade 18-8 Stainless Steel | |||
| Specification | ||
|---|---|---|
| Material | Standards | Grades |
| Nickel Alloy | ASTM / ASME SB 160 / 164 / 425 / 166 / 446 / 574 / 472 | UNS 2200 (NICKEL 200) / UNS 2201 (NICKEL 201), UNS 4400 (MONEL 400), UNS 8825 (INCONEL 825), UNS 6600 (INCONEL 600) / UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276), UNS 8020 (ALLOY 20 / 20 CB 3) |
| Stainless Steel | ASTM / ASME A/SA 193 / 194 | B 8 (304), B 8C (SS 347), B 8M (SS 316), B 8 T (SS 321), A 2, A 4 |
| Alloy Steel | ASTM / ASME A/SA 193 / 194 GR | B 6, B 7/ B 7M, B 16, 2, 2HM, 2H, GR 6, B 7, B 7M |
| Duplex Steel | UNS NO. S 31803, S 32205 | |
| Nonmetallic Materials: | Acrylic, Kel-F, Lexan, Polypropylene, Poly Vinyl Chloride, Teflon, Zytel 31, 101, 105 | |
| High-Temp Alloys | Discaloy, 19-9 DL, 16-25-6, A286, Titanium, Nimonic 80, Mulitmet, Haynes 25, Greek Ascalloy, Unitemp 252, Udimet 500, Rene 41, Inco 700, Inco 901, Hastelloy X, 235, Waspaloy, RA 330 | |
| Copper Base Alloys | Copper, Brasses: Yellow, Free-cut, Red, Naval, Bronze: Commercial, Phosphor, Silicon A & B, Aluminum, Silicon-Aluminum, Manganese, Ampco Alloys, Munitz Metal, Cupro-Nicles | |
| Aluminum Alloys: | 1100, 2011, 2014, 2017, 2024, 3003, 5052, 6053, 6061, 7075 | |
Socket Head Cap Screws are a type of fastener, in some ways similar to a bolt, typically made of metal, and characterized by a helical ridge, known as a male external thread. Socket Head Cap Screws are used to fasten materials by digging in and wedging into a material when turned, while the thread cuts grooves in the fastened material that may help pull fastened materials together and prevent pull-out. There are many Socket Head Cap Screws for a variety of materials; those commonly fastened by Socket Head Cap Screws include sheet metal, wood, and plastic.
Zinc and Chromate Socket Head Cap Screws: Silvery and offers resistant to corrosion for Socket Head Cap Screws.
Plain Finish Socket Head Cap Screws: Socket Head Cap Screws with No Coating.
Zinc Plated Socket Head Cap Screws: Socket Head Cap Screws Coated with Zinc.
Zinc and Yellow Chromate Socket Head Cap Screws: Offers better resistant to corrosion to Socket Head Cap Screws than Chromate.
Hot Dipped Galvanized(HDG) Socket Head Cap Screws: Offers superior resistant to corrosion due to the dipping of Socket Head Cap Screws in the molten zinc.
