Best Plastic Socket Cap Screws in 2026

❤ High Quality Stainless Steel Hex Socket Flat Head Countersunk Bolts Screw Nuts Kit

❤ Drive Type: Hex Socket; Head Style: Flat Head

❤ Package Quantity: 510Pcs; Different Size: M3 / 4 / 5

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.

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 .

✔ Includes 100 Pcs, 5 Sizes, M4 Hex Socket Button Head Cap Screws: M4 x 20, M4 x 25, M4 x 30, M4 x 35, M4 x 40, Thread Size ( Diameter ): 4 mm, Thread pitch: 0.7 mm, Thread Length from 20 mm to 40 mm

✔ Material of Screws: Stainless Steel 304, High Strength And Anti-corrosion in Various Conditions

✔ Includes 1 Pcs Hex Key , Hex Size: 2.5 mm, to Drive These Screws Conveniently and Easily

High Quality 304 Stainless Steel Hex Socket Head Cap Screws Bolts Nuts Flat Washers Kit. We also provide four free relevant wrenchs in our sets.

Many various sizes of M3 M4 M5 M6 screws (Drive Type: Hex Socket; Head Style: Socket Cap Head) with matching nuts and flat washers meet different people's demands, the necessity of your home life.

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

Wide Application:This M3 bolts and nuts assortment kit and m3 screws is great for professionals, amateurs, landlords, handymen, repair men, women, woodworking, construction, plumbing, HVAC and so on. These metric bolts and nuts assortment can be widely used in manual DIY production, robots, UAVs, aerial aircraft, 3D printing equipment, communication equipment, medical equipment, food machinery, petrochemical industry, marine power facilities, architecture and other fields .The M3 scr

High Quality: This M3 bolts and nuts assortment kit M3 screws hex head screws M3 nut M3 washer is made of high quality Alloy Steel,which features high strength and offers good corrosion resistance in bad environment like high temperature ,cold weather, and high humidity areas.And also these metric 3mm screw assortment kit anti oxidation,high toughness. They have superior rust resistance and the excellent , which can ensure use these m3 screws m3 nut and m3 washer black a long time,ver

Safety and Sweet:Our M3 bolts and nuts assortment kit m3 screws m3 nuts and m3 washer with high quality material, which is environmental protection and non-poisonous. In the process of using, these screws and nuts are no toxic substances releasing to ensure your safety. And we add an Allen Wrench on package to make working convenience for you when you are using these m3 nuts and bolts.

★ 【QUALITY & DURABLE】The zinc plated surface barrel nuts kit also prevents it from rustiness, corrosion and oxidation. They have the performance of wear-resistance, high hardness and good toughness. Zinc plated surface also prevents it from rustiness, corrosion and oxidation.

★ Drive Type: Hex Socket; Head Style: Round Head; M6 Barrel Nut Size: Total Length 12 mm / 0.47'', Outer Diameter: 9.5mm / 0.37'', Threaded Hole Diameter 6 mm/ 0.24''. Zinc Plated Metal; Size Include: M6 x 35mm / 45mm / 55mm / 65mm / 75mm. 100-Piece/50 Pairs (Include 50pcs M6 Barrel Nuts)

★【WELL MADE BED SCREW】Hex socket head crib bolts ensures stability, and will not easy to skid. Pozidriv design keeps the nuts connecting with the bolts correctly, and is less likely to cam out. Without burrs, these crib screws has clear threads and easy to screw in.

✔ Screw Head Style: Flat Head, Screw Drive Style: Internal Hex Drives, Known as Hex Socket Drives, Hex Size: 2.0 mm; Head Diameter: 5.8 mm; Thread Pitch: 0.5 mm; Thread Dia. : 3 mm

✔ Includes 5 Sizes Screws: M3 x 6, M3 x 8, M3 x 10, M3 x 12, M3 x 16

✔ Includes 1 Pcs Hex Key, Hex Size 2.0 mm, to Drives These Screws Easily

High Quality 240pcs Metric M3 Hex Drive Rounded Head Screws and Hex Nuts Assortment Kit.

Screw thread: M3/(3mm) with thread pitch: 0.5mm;Fully Threaded

M3 different length:6MM,8MM,10MM,12MM,14MM,16MM,18MM,20MM,25MM;Length is measured from under the head

The socket head cap screws are made of high quality stainless steel 304 which offers chemical and corrosion resistance.

Thread Diameter: 6 mm; Pitch Size: 1.0 mm. Thread Length: 20 mm, 25 mm, 30 mm, 35 mm, and 40 mm.

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

Package: 25 * Bolts, 25 * M6 Barrel Nuts , with one clear plastic storage box;

Name: Furniture Bolts Barrel Nuts Kit;

Include M6 x40mm, M6 x 50mm, M6 x60mm, M6 x 70mm, M6 x 80mm Furniture Bolt Hex Head;

➤Package Content: 15 Sets x Furniture Bolt + Barrel Nut,1pcs x Hex Key ; Main Color: Bronze

➤Nut Size: 9.5 x 13mm / 0.37" x 0.5"(D*L); Screw Size: 13 x 122mm / 0.5" x 4.8"(Max.D*L)

➤Under Head Length: 100mm / 3.93"; Fit Hex Key Size: 4mm / 0.16";Thread Size: 55 x M6 / 2.16" x 0.24" (L*D); Thread Pitch: 1mm

√ High quality 304 stainless steel hex socket head cap screws bolts nuts flat washers kit. We also provide three free relevant wrenchs in our sets.

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

√ Many various sizes of M3 M4 M5 screws (Drive Type: Hex Socket; Head Style: Button Head)with matching nuts and flat washers meet different people’s demands, the necessity of your home life.Package quantity: 900Pcs.Everything is very organized and decent in a sturdy convenient case, can be use for a storage box, is organized to you, very easy to open and close.

✔ Includes 100 Pcs, 5 Sizes, Hex Socket Button Head Cap Screws: M5 x 20, M5 x 25, M5 x 30, M5 x 35, M5 x 40

✔ Includes 100 Pcs M5 Nuts to Meet Different Applications

✔ Material of Screws and Nuts: Stainless Steel 304, High Strength And Anti-corrosion in Various Conditions

【Sizes】M2/M3/M4/M5 (8/12/16/20 mm) screw bolts nuts flat washers, different sizes can meet your different needs.

【Material】Made of high quality 12.9 grade alloy steel, high hardness, no deformation, anti-oxidation, corrosion resistance.

【Package】1280 pieces in total, packed in a durable transparent box with label. It is easy to distinguish the size of the product, you can choose the suitable one to meet all your needs.

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

★ High Quality: The barrel nut and bolt in this set are made of high hardness and good toughness steel, with nickel plated on the surface makes it smooth without burrs, rust resistance and corrosion resistance allows you to use them for a long time

★ Package Include: It include 5 size of M6*35mm, M6*45mm, M6*55mm, M6*65mm, M6*75mm total 50pcs screw with 50pcs M6*12 barrel nuts in a clear box, convenient for your use

★ Perfect Match: These screws have a perfect match with barrel nuts to make strong joints for your furniture

⏩【QUALITY & DURABLE】The black surface M6 hex drive socket cap bolts kit prevents it from rustiness, corrosion and oxidation. Black Zinc surface has the performance of wear-resistance, high hardness and good toughness.

⏩ Drive Type: Hex Socket; Head Style: Round Head; Fit hex type: 4mm; Bolts Sizes(16-80mm): M6 x 16/20/25/30/35/40/45/50/55/60/65/70/75/80mm; M6 nuts 【Metric, please See Picture 2 for Specific Dimensional Size】

⏩【WELL MADE BED SCREW】 Hex socket head crib bolts ensures stability, and will not easy to skid. Nuts will connect with the bolts correctly, and is less likely to cam out. Without burrs, these crib screws has clear threads and easy to screw in.

M8 Specification : Pitch 1.25 mm. Thread Diameter 8 mm; Length: 20mm/25mm/30mm/35mm/40mm. Drive Wrench: 5mm

M6 Specification : Pitch 1.0 mm. Thread Diameter 6 mm; Length: 16mm/20mm/25mm/30mm/40mm; Drive Wrench: 4mm

Great Performance: 10.9 grade alloy steel, which features high hardness, good wear resistance, good leak-proof effect, with good fatigue resistance for long time use.

【SIZE INCLUDED】Baby bed crib screws bolts hardware kit includes 28pcs m6 x 20mm/40mm/60mm/80mm bolts and 28pcs m6x12mm barrel nuts,1pc m4 wrench;

【PREMIUM MATERIAL】Crib Screws Hardware Replacement Kit is made from premium quality zinc-plated carbon steel, which is anti-rusting and sturdy for serving longer, smooth without burrs.

【FIT MOST CRIB】The bolts &barrel nuts are compatible with most Cribs on the market,such as Delta/Graco/Dream On Me,etc

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

✔ Different Size of M3 M4 M5.

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

High Quality Stainless Steel Hex Socket Button Head Bolts Screws Nuts

Drive Type: Hex Socket; Head Style: Button Head

Material: 304 Stainless Steel; Different Size of M5 (Include M5 Nuts)

Note: this screw assortment kit is metric which includes M2 M3 M4 M5, PLEASE CONFIRM THE SIZE before you purchase

【Quantities】--- the kit includes M2x8mm/12mm/16mm/20mm, M3x8mm/12mm/16mm/20mm, M4x8mm/12mm/16mm/20mm, M5x8mm/12mm/16mm/20mm screws with matching nuts and washers; total is 1225pcs；

【Handy Box】--- This set is organized by size in a durable and sturdy case, which is easy to get the bolts you need and convenient to put off your tiny parts

METRIC STAINLESS BOLT KIT- set screw kit includes screws, bolts, washers and allen wrench drives. Screws and bolts conform to the standardized metric system, with an error less than 0.01mm.

STAINLESS STEEL NUTS AND BOLTS - The metric socket cap set is made of high quality 304 stainless steel, which provides screws and nuts with corrosion and abrasion resistance, toughness, super hardness.

METRIC ALLEN BOLTS KIT - The metric screw kit can be widely used in all kinds of precision machinery instruments, electrical and electronic products, household appliances, communication products, door locks, toys and other appliances

[❤] Package: 10pcs 5/16-18 Screws, one hex key;

[❤] Name: Black 5/16-18 x 2" Furniture Allen Bolts;

[❤] Fit hex Type: 5mm; [❤] Material: Metal; [❤] Color: Black;

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

✿ 1, WHAT YOU GET ---- In this kit, You will get 25Pcs Carbon Steel Black Hex Drive Socket Cap Bolts Barrel Nuts Kit with 1Pcs Allen Wrench, Including M6x20mm; 12Pcs and M6x17 Nuts: 12Pcs. We now have a variety of sizes to choose from, you can choose whatever you need, which can fully meet your daily needs.

✿ 2, PRODUCT SIZE ---- Applicable Hole Dia：5/16"(8mm); Male Thread Size(Screw): M6x16mm; M6x20mm; M6x25mm; M6x30mm; M6x35mm; M6x40mm; M6x45mm; M6x50mm; M6x55mm; M6x60mm; M6x65mm; M6x70mm; M6x75mm; M6x80mm and M6x17(D*L); Female Thread Size(Top): M6 x 17mm(D*L). Threaded post lets you open and re-attach piece where needed.

✿ 3, HIGH QUALITY ---- Every barrel nut and bolt is Precision mechanical thread, made of high-quality carbon steel material, black powder coating, anti-rust. Those have the performance of high hardness and good toughness, The screw thread is clear and not easy to loose. which make the kit more sturdy and durable.

Quality Material: set screw kit made of 304 stainless steel, excellent rust resistance and corrosion resistance, free from burrs, won’t slip out easily.

Sizes Included: M3*3mm, M3*4mm, M3*10mm, M4*4mm, M4*6mm, M4*8mm, M5*5mm, M5*8mm, M5*10mm, M6*6mm, M6*10mm, M8*8mm, M8*12mm.

Wide Applications: Suitable for door handles, faucet, light fixture, knobs, armament repair, plumber and other small repairs around the shop, garage or home.

High Quality Stainless Steel Hex Socket Button Head Bolts Screws Nuts

Drive Type: Hex Socket; Head Style: Button Head

Material: 304 Stainless Steel; Different Size of M3 (Include M3 Nuts)

High Quality Hex Socket Head Cap Screw Assortment Kit

135pcs metric different size with different length 304 stainless steel Hex Socket Head Cap Screw

different size :M2.5 M3 M4 M5 M6 M8;different length:8MM~25MM