Best Plastic Socket Cap Screws in 2026

Standard: ISO7380; Thread Type: Full Thread, Coarse Thread UNC

Thread Size: 10mm; Thread Pitch: 1.5mm; Thread Length: 50mm

Package: 10 PCS; Hex Drive Size: 6mm

Head Type: Button | Size: M3 M4 M5 | Finish: Black Oxide| Material: 10.9 grade alloy steel| Drive Type: Internal Hex| Quantity: 570pcs

Various Head Dia. & Length. Includes M3 M4 M5(head dia.) in length of 6mm/8mm/10mm/12mm/16mm/20mm.

These metric bolts are made from alloy steel heat treated to provide a good balance of hardness and toughness, black oxided increase their corrosion resistance.

Type: Socket Head Cap screws

Grade:Class 12.9

Material:Alloy Steel

Type: Button Head Socket Cap Screws

Grade:Class 10.9

Material:Alloy Steel

with the ability to assemble 5+ parts per kit, 10+ parts per kit,100+ parts per kit,build multiple sub-kits within a master kit, and even provide assembly services.

State-of-the-art automated equipment for increased speed and accuracy.

Multiple levels of verification to ensure quality and accuracy.

Head Type: socket; Thread Diameter: 5mm; Thread Pitch: 0.7mm; Drive Type: internal allen hex; Driver wrench: 3mm; UNC Full Thread

Screw Length 8mm to 30mm: this cap screws kit include sizes M4 x 8/10/12/20/25/30/35/40mm socket head screws bolts with matching washers and nuts.

Quantity: the metric M4 screws kit contains 8 sizes of the most in-demand models alloy steel button head socket screws nuts washers, totally 365pcs

with the ability to assemble 5+ parts per kit, 10+ parts per kit,100+ parts per kit,build multiple sub-kits within a master kit, and even provide assembly services.

State-of-the-art automated equipment for increased speed and accuracy.

Multiple levels of verification to ensure quality and accuracy.

Type: Button Head Socket Cap Screws

Grade:Class 10.9

Material:Alloy Steel

✔ Alloy Steel Black Oxide (Oil Finish), Button Head Socket Cap Screw

✔ Different Size of M3 M4 M5.

✔ Package Quantity: 500pcs, with Plastic Clear Box.

✔ High Quality Alloy Steel Hex Socket Head Cap Screws Nuts Kit.

✔ Different Size of M3 M4 M5.

✔ Package Quantity: 500pcs, with Plastic Clear Box.

with the ability to assemble 5+ parts per kit, 10+ parts per kit,100+ parts per kit,build multiple sub-kits within a master kit, and even provide assembly services.

State-of-the-art automated equipment for increased speed and accuracy.

Multiple levels of verification to ensure quality and accuracy.

◎ Flat head socket cap screws, socket drive, 10.9 grade alloy steel, black oxide finish

◎ Flat head is cone shaped for use in countersunk holes and has a flat top that fits flush with the mated surface

◎ Package quantity: 500pcs, Different size of M3 M4 M5. Internal hex drive has a hexagonal slot that turns using an Allen key driver

Made of 100% Grade 10.9 Alloy Steel which offers a high level of chemical and corrosion resistance.

The low profile of the socket button head makes a very clean looking, and offers a much larger contact surface.

Thread Diameter: 3/8"; Head Diameter 0.656"; Head Height 0.199"; Screw Length 3/4"; Thread Count: 16; Allen Hex Drive 7/32".

✔ Includes 225 Pcs, 10 Sizes, M4 Hex Socket Button Head Cap Screws, Thread Pitch 0.7 mm, Thread Size ( Diameter) 4 mm, Head Diameter 7.4 mm, Head Height 2.0 mm, Thread Length From 6 mm to 40 mm : M4 x 6, M4 x 8, M4 x 10, M4 x 12, M4 x 16, M4 x 20, M4 x 25, M4 x 30, M4 x 35, M4 x 40

✔ Strength Grade of Screws: 10.9 Grade, Tensile Strength: 1040 N/mm², Hardness: HRC 32-39; Material of Screws: Alloy Steel, Black Oxide Finish, High Strength And Anti-rust

✔ Includes 225 Pcs M4 Hex Nuts to Meet Different Applications, Material of Nuts: Alloy Steel, Black Oxide Finish

Metric 12.9 Alloy Allen Socket Head Cap Screw Assortment - 453 PCS

Black Oxide Finish

Heavy Duty Locking Steel 24 Hole Compartment Tray (Dim: 13-3/8" Width x 2" Height x 9-1/4" Depth)

Made of high quality Alloy Steel Grade 10.9.

Thread Diameter: 1/4 Inch; Total Length: 2 Inch (Head Included); Thread Count: 20.

Drive Type: Allen Hex Socket 5/32 Inch; Color: Black Oxide.

RUGGED AND DURABLE - SG TZH Button Head Socket Cap Bolts Screws made of high-quality 18-8(304)Stainless Steel，which has higher corrosion resistance and anti-rust effect than ordinary bolt, longer service life, not easy to damage, more solid.

Product Size - Thread Diameter: 3/8"; Thread Pitch: 1/16"; Screw Length: 1". Head Diameter: 0.646". Please check specfication by picture 2

WIDE RANGE OF APPLICATIONS - Button Head Socket Cap Bolts Screws can be widely used in the home and office appliance, communication equipments, ship assembly , the mechanical industry and small repairs around shops, garages or home furniture fasteners.

Type: Socket Cap Screw

Grade:Class 12.9

Material:Alloy Steel

PACKAGE INCLUDED: M6 x 20mm(10PCS), M6 x 25mm(10PCS), M6 x 30mm(10PCS), M6 x 35mm(10PCS), M6 x 40mm(10PCS)

High quality: It is made of high quality 10.9 grade alloy steel, and the surface is treated with black oxide. They have excellent corrosion resistance, firmness, wear resistance and low temperature resistance.

THE WIDE APPLICATIONS:Suitable for maintenance, fastening, and home repair of furniture in various fields, such as doors, windows, cribs, tables, benches, etc. It is also suitable for other electronic products, mechanical products, digital products, and electrical equipment