Shoulder Screw also known as a shoulder bolt or stripper bolt, is a type of fastener designed with a cylindrical, unthreaded section (shoulder) between the head and the threaded portion. The unthreaded shoulder provides a smooth and accurately sized surface, often used as a pivot or shaft within an assembly.
When using shoulder screws, it's important to consider the specific requirements of the application, including the need for precision, load-bearing capacity, and environmental conditions. The unthreaded shoulder portion plays a crucial role in applications where the smooth surface is necessary for proper functioning.
We at Royal Steel India manufacture a wide variety of Shoulder Screws. There is a different types of screw used for different needs. Shoulder Screws are used directly unlike the bolts which are used with nuts. Our Shoulder Screws are available in different sizes, grades and shapes. Royal Steel India manufactures and exports high-quality industrial Shoulder 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 Shoulder Screws Exporters in Mumbai.
| Shoulder 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 | |
Shoulder 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. Shoulder 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 Shoulder Screws for a variety of materials; those commonly fastened by Shoulder Screws include sheet metal, wood, and plastic.
Zinc and Chromate Shoulder Screws: Silvery and offers resistant to corrosion for Shoulder Screws.
Plain Finish Shoulder Screws: Shoulder Screws with No Coating.
Zinc Plated Shoulder Screws: Shoulder Screws Coated with Zinc.
Zinc and Yellow Chromate Shoulder Screws: Offers better resistant to corrosion to Shoulder Screws than Chromate.
Hot Dipped Galvanized(HDG) Shoulder Screws: Offers superior resistant to corrosion due to the dipping of Shoulder Screws in the molten zinc.
