Slotted Machine Screws are threaded fasteners with straight grooves (one-slot) in the head for reliable connections in preformed threaded holes, which can be installed using a one-slot screwdriver drive. With simple structure, low cost and easy installation, one-slot machine screws are widely used in light machinery, electronic equipment and home assembly fields that do not require high aesthetics but need to be assembled quickly.
Best Slotted Machine Screws One-Stop Supplier
BDfastener offers machine screws in a wide range of materials and finishes, from small to large diameters; conforming to international standards.
- Precision quality
- Durable and reliable
- Affordable
- Full range of sizes
- Customizable
Slotted Machine Screws Specifications
| Diameter range | M1 – M12 (metric) or #0~1/2″ (imperial) |
| Length range | 3mm – 200mm (customized) |
| Slot depth | Standard slot/deep slot |
| Strength class | A2-70, A2-80, A4-70, A4-80, Class 3.6, 4.6, 4.8, 5.6, 5.8, 6.8, 8.8. 9.8, 10.9, 12.9. |
| Thread | UNC thread, UNF thread, ISO thread, Metric thread, Imperial thread, Full thread, Half thread, Coarse thread, Fine thread, Reverse thread. |
| Material | Carbon steel, stainless steel, alloy steel, nylon, brass, titanium, aluminum alloy, duplex stainless steel, etc. |
| Packaging | Plastic bag packaging, plastic box packaging, cardboard boxes, pallets, or customized packaging services. |
Standards for Slotted Machine Screws
| DIN 84 | DIN 964 | DIN 920 | ISO 2010 | BS 450 | JIS B 1116 |
| DIN 85 | DIN 43854 | ISO 1207 | ISO 1580 | BS 1981 | JIS B 1101 |
| DIN 7964 | DIN 8243 | ISO 2342 | ASME B 18.6.3 | IFI 513 | ISO 2009 |
| DIN 404 | DIN 921 | ISO 2009 | BS 4183 | JIS B 1119 | DIN 963 |
Surface Treatment
| Hot-dip Galvanizing | Black Oxide | Nickel Plating | Phosphating | Polishing | Dacromet |
| Black Zinc Plating | White Zinc Plating | Stainless Steel Passivation | Mechanical Galvanizing | Color Zinc Plating | Chrome Plating |
| Powder Sherardizing | Olive Zinc | Copper Plating | Composite Plating | Electrophoresis | Baking Paint |
| Rustban Coating | Silver Plating | Cadmium Plating | Gold Plating | Zinc-Nickel Alloy | Electroless Nickel |
| Teflon (PTFE) | Atotech | QPQ | Cleaning | Nylok (Nyseal) | Magni Coating |
| GEOMET | Adhesive Coating | Zinc-Aluminum-Magnesium | Blue Zinc Plating | Yellow Zinc Plating | Zinc-Cobalt Alloy |
Product Types
BDfastener’s slotted machine screws are available in flat (countersunk), pan head, round washer head, cylindrical head, semi-circular and cheese head styles.
Slotted Mushroom Head Screw
Slotted Pan Head Screw
Slotted Countersunk(CSK) Head Screw
Slotted Cheese Head Screw
Slotted Raised Countersunk Head Screw
Nylon Slotted Screw
Applications
- Electrical and electronics: fixing of circuit boards, assembly of housings
- Mechanical engineering: assembly of equipment, connection of lightweight structural parts
- Furniture industry: wood, removable joints
- Automotive accessories: fixing of interior parts, non-load-bearing parts
BDfastener: Specialist in Lean Manufacturing of Fasteners
BDfastener lean manufacturing process strictly follows the requirements of international standards, from raw materials to finished products to implement triple inspection (material analysis, dimensional testing, performance testing), all data archiving system can be traced. Zero tolerance for non-conforming products, eliminate jerry-building, quality priority over the market speed.
- OEM/ODM: Develop exclusive screws according to customer’s drawing or demand.
- Surface finishing: color zinc plating, hot dip zinc, electrophoresis, anodic oxidation and other treatment processes.
- Heat treatment: improve the hardness and strength of screws
- Packaging solutions: customized packaging such as rolls, blister boxes, anti-static bags, small packages, label customization and moisture-proof packaging.
- Logistic support: Provide export wooden box packaging and customs clearance documentation services.
- Testing: Provide material analysis, dimensional testing and performance test reports.
BDfastener supports the customization of non-standard slotted machine screws in terms of size, material and surface finishing (e.g. special coating, anti-loosening adhesive). For more information or to get a quote, please contact us.