Best Socket Cap Machine Screws in 2026

The socket head cap screws are 100% stainless steel 304 (A2-70) which offers a high level of chemical and corrosion resistance.

Thread Diameter: 6mm; Thread Length: 25mm; Total Length: 31mm; Pitch Size: 1.0mm.

Head Diameter: 10mm; Head Height: 6mm; Drive Type: Allen Hex Socket 5mm; Color: Silver Tone.

Standard Metric: Our M2 M3 M4 M5 screws and nuts accord with standardized metric system. And the average error is less than 0.01mm.

High Quality: The kit is made of high quality 304 stainless steel, which features is strength and offers good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas.

Broad Application:M2 M3 M4 M5 Hex Socket Head Screws Washers and Nuts Assortment Kit Serves a wide range of use and for professionals, amateurs, landlords, repairmen, other DIY .

(m3 cap head screws)Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head.

(m3X 6mm screws)Metric screws are also known as A2 stainless steel screws.

(Long 6mm bolt)Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch. Fine threads are closely spaced to prevent loosening from vibration. They are not compatible with coarse threads.

Head Type: Button; Thread Diameter: 5mm; Thread Pitch: 0.8mm; Drive Type: internal allen hex; Driver wrench: 3mm; UNC Full Thread

Screw Length 10mm to 35mm: this cap screws kit include sizes M5 x 10/12/16/25/30/35mm button head screws bolts with matching washers and nuts.

Quantity: the metric M5 screws kit contains 6 sizes of the most in-demand models alloy steel button head socket screws nuts washers, totally 328pcs

Head Type: socket; Thread Diameter: 5mm; Thread Pitch: 0.8mm; Drive Type: internal allen hex; Driver wrench: 4mm; UNC Full Thread

Screw Length 8mm to 30mm: this cap screws kit include sizes M5 x 8/10/12/20/25/30mm socket head screws bolts with matching washers and nuts.

Quantity: the metric M5 screws kit contains 6 sizes of the most in-demand models alloy steel button head socket screws nuts washers, totally 328pcs

√ Drive Type: Phillips; Head Style: Flat Head; Exterior Finish: Black Oxide; Thread Pitch: 0.5mm.

√ Screw Type: M3 Phillips Flat Head Machine Screws Nuts Washers Assortment Kit.

√ Quantity: Contains 870pcs M3 x 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, 30mm countersunk machine screws assortment.

Made of 12.9-grade carbon steel, the highest metric class for strength. 12.9 screw bolt is one of the highest grades of bolts produced. The surface is plated with black zinc which provides longer service life. They are built with hex heads.

The screw assortment set included hex socket screw bolts and nuts. Nuts and bolts are the most important companions to hold our mechanical devices together. The screws set has 140Pcs M3 screw bolts, 140Pcs screw nuts and 2Pcs hex keys. The bolts sizes is 4mm/ 5mm / 6mm/ 8mm/ 10mm/ 12mm/ 16mm/ 18mm/ 20mm.

It has a wide range of uses due to its versatility, raised dome head, and durability. Ranging from manufacturing applications to household repair. Such as plumbing works, industrial machinery, construction, automotive, marine, bicycle, 3D printer components and DIY projects, etc. Great for workers, repairmen and DIY hobbyists.

【SIZE】- Model: M4x6mm; Screw Length: 6mm/ 0.24"; Pitch: 0.7mm/ 0.03"; Screw Head Diameter: 7.6mm/ 0.3"; Screw Head Thickness: 2.2mm/ 0.09"; Inner Hex Diameter: 2.58mm/ 0.1"

【ADVANTAGE】- Round head machine screws, hex socket drive. Metric machine screws for universal use

【MATERIAL】- Inner Hex Socket Round Head Screws are made of carbon steel, strong rust and corrosion resistant for a long time use

Package contains 25 pieces M6X16 metric tamper proof screws & 1 piece TX30 + PIN installation / removal bit.

Torx+PIN anti-theft, anti-vandalism security screws / fasteners require a special bit (included) to install, preventing theft or vandal of equipment at home or at work.

Button head style provides a smooth surface finish for exposed locations as well as indoor use: car and vehicle license plates, vanity wallplate, furniture, solar panels, lighting, signage, machinery, security cameras, handrails, sheet metal, gutters, grills, schools, boats, food prep and processing areas, windows, bathroom stalls, toilet partitions, television, furniture, other appliances, and other industrial uses.

Size: M3-0.5 X 6MM

Flat Head, Phillips Drive

Use with nuts or pre-threaded holes of the same diameter and thread size

Head Style: Round Knurled Head; Material: Carbon Steel; Package Content: 5 x Knurled Thumb Screws

Product Name: Knurled Thumb Screws; Thread Size: M6 x 12mm/ 0.24" x 0.47" (D*L); Weight: 97g

Coating: Galvanized/Zinc Plated; Main Color: Silver Tone

【Dimensions】- Model: M3 x 35mm; Screw Length: 35mm / 1.38"; Pitch: 0.5mm / 0.02"; Hat diameter: 6.9mm / 0.27".

【Material】- M3 x 35mm phillips cross round head screwade of 304 Stainless Steel Material, strong and durable. Also has good corrosion resistance and not easy to rust.

【Product Features】- Truss head machine screws, Phillips drive. Metric machine screws for universal use.

【Sizes】M5 x 6mm /8mm /10mm /12mm /16mm /20mm/25mm Screws (Drive Type: Phillips; Head Style: Pan )

【Material】304 Stainless Steel, stainless steel material which have good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas. They have superior rust resistance and excellent oxidation resistance, which can ensure long time using.

【Features】Nuts and flat washers expand the contact area and reduce the pressure in order to protect the screws and parts.

M5 Phillips Flat Head Machine Screws,metric,56-pieces,Thread Diameter 5mm

Stainless Steel 304 (18-8)

Kit contains:M5 X 8mm,M5 X 10mm,M5 X 12mm,M5 X 16mm,M5 X 20mm,M5 X 25mm,M5 X 30mm