Best Plastic Socket Cap Screws in 2026

✔ 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

(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.

★ 【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.

Socket Cap Head Screws feature a socket for use with a Hex Key (also known as an Allen key).

All products within this range are manufactured in accordance with industry standards. Socket Head Cap Screws are manufactured using a high-precision machining process, allowing tolerances of ±0.25mm to be achieved.

All products within this range are fully threaded

【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

⏩【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.

❋ [Multiple Sizes]: The kit includes M6 hex socket cap bolts, 20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, each for 10pcs; M6x12mm barrel nut for 70pcs and an Allen wrench. A nice assortment of sizes that help you match and find all the bolts and nuts you would want, and you don’t need to purchase an additional Allen wrench.

❋ [Reliable materials]: Our products are made by high-quality metal, anti-corrosive and anti-rust, it increase the service life of bolts and nuts; the black coating on the surface can resist oxidation and makes products shiny.

❋ [Humanized Design]: The bolts have clear threads and smooth surfaces without burrs, which makes installation and disassembly very convenient; and a properly designed Allen wrench also can save your time and energy.

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.

Female Thread Size: M8x20mm(D*L); Overall Height: 22.8mm / 0.9"; Sleeve Diameter: 10mm / 0.39"

Cap Size: 2.8 x 15.7mm / 0.11" x 0.62" (T*D); Hex Width(Fit for Wrench Size): 5mm / 0.2"

Material: Made of iron, nickel-plated to form a dense and stable oxide film, smooth, hard and durable.

★【What’s Included】 - This set includes ①140pcs M6 connecting bolts and cap nuts + ② 1pcs hex key for quick installation. Besides, we also offer a wide selection of furniture connector bolt lengths at great value.

★【Connecting Bolts】 - Stiff, precise and durable. If you want to replace some stripped and loose hardware for better fixing and connecting, it’s a nice option for your projects. Features with clean thread with no burr, flat head design keeps it stable and tight.

★【Easy Installation】 - Simply drill a appropriately sized hole and insert the two ends of connecting bolts and cap nuts into it. Then, you can secure them in place by the included hex key.

【M6 Furniture Cap Bolt Kit】Includes 141 pcs 14 different sizes Hex Socket Cap Bolts (M6 x 16mm 20mm 25mm 30mm 35mm 40mm 45mm 50mm 55mm 60mm 65mm 70mm 75mm 80mm, each is 5pcs) + 70pcs Barrel Nuts + 1pc Hex Key. With multiple lengths available, you can choose the perfect size to meet different needs. Comes with a durable plastic case with size label for convenient storage.

【Strong and Rustproof Material】The furniture bolts and barrel nuts are made of premium carbon steel material with nickel plated, high hardness, smooth and burr-free. The rust preventative silver nickel finishes ensure their good performance even in wet environment, which also give them a slightly glossy appearance.

【Selected Custom Set】These furniture hardware features standardized metric thread on both the female threaded barrel nuts & the male threaded bolts, clean, accurate and neat. Once installed, they won’t easy to out of shape or slid in the process of rolling.

【M6 Furniture Cap Bolt Kit】Includes 85 pcs 7 different sizes Hex Socket Cap Bolts (M6 x 20mm 30mm 40mm, 50mm 60mm,70mm, 80mm each is 6pcs) + 70pcs Barrel Nuts + 1pc Hex Key. With multiple lengths available, you can choose the perfect size to meet different needs. Comes with a durable plastic case with size label for convenient storage.

【Strong and Rustproof Material】The furniture bolts and barrel nuts are made of premium carbon steel material with nickel plated, high hardness, smooth and burr-free. The rust preventative silver nickel finishes ensure their good performance even in wet environment, which also give them a slightly glossy appearance.

【Selected Custom Set】These furniture hardware features standardized metric thread on both the female threaded barrel nuts & the male threaded bolts, clean, accurate and neat. Once installed, they won’t easy to out of shape or slid in the process of rolling.

[Package contains]: 15 x Grub Screw

"[Product size]: Thread Size：3/8-16 | Thread Type: 16 Coarse Thread (UNC) | Screw Length: 1 inch or 25mm (measured from under the head) | Thread Style: Right Hand | Thread Coverage: Full Thread | Quantity: 15 pcs"

[Fine Workmanship]: Hex Socket Cap design ,can easily be driven by Allen key wrenches,All the grub screws with coarse threads, It exerts compressive force or clamping force through the bottom tip protruding from the hole..Clear and neat threads ,of these screws make it more aesthetic and ensure uniform force. and the fastening effect is better.Standard hexagon for easy installation, so it can greatly save your time even though install by hand.

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.

[1]: APPLY TO - Hexagon socket countersunk head screws are suitable for indoor and outdoor use and are commonly used in mechanical maintenance, furniture assembly maintenance, and DIY.

[2]: SPECIFICATION - Model: M8x80mm; Screw Overall Length: 80mm(L) /3.15"; Inner Hex Dia.:5mm(D)/0.2"; Pitch: 1.25mm / 0.049"; Screw Head Dia: 16mm / 0.63"

[3]: DESIGN - Hexagon socket is a countersunk head screw that has the advantages of fastening, easy disassembly, and not easy to slip Angle. Inner hexagon screw is to sink the whole nut to the inner surface of the workpiece, can keep the workpiece surface smooth and beautiful. It is also suitable for many transfer situations, such as narrow situations will also be used. So assembly and maintenance are very convenient, debugging is also simple, easy to operate.

Premium Material: Our assorted flat countersunk head screws bolts and nuts are made of premium stainless steel material, which has high strength and good corrosion resistance in many environments, solid and durable for long-term use.

Easy to Use: The force is evenly distributed and located in the center of the head, no offset, not easy to slip, uniform thread pitch, obvious thread, no residual burrs, tight thread has good grip.

Easy to Store: All hex head nuts and bolts are packed in a sturdy divided plastic box, various lengths, a completely diverse assortment, organized and easy to open and search, convenient and portable.

Socket cap machine screws are precision fasteners that are known for their quality and durability. They are designed to meet challenging fastening applications in a variety of industries such as construction, automotive, and product manufacturing. They are also known for their efficient application performance and endurance.

Button is low domed style head with a wide bearing surface that is perfect for use on applications in tight spaces.

Hex socket screw drive has a hexagonal recess and may be driven by a hex key or Allen wrench that allows for high torque wrenching in tight spaces.

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