Best Insulation Screws in 2026

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.

SIZE: M2 x 4mm/6mm/8mm/12mm/16mm/20mm, M3 x 4mm/8mm/12mm/16mm/20 mm/30mm, M4 x 6mm/10mm/14mm/18mm/20mm/30mm screws with matching nuts and flat washers, a must have to get job done! job.

These metric socket head cap screws bolts nuts are made of 12.9 Grade alloy steel, features superior rust resistance and excellent oxidation resistance.

Come in organized, 1080pcs/18 sizes metric screws bolts. All screws nuts washers are packed in a sturdy convenient case for daily storage.

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.

【HIGH QUALITY MATERIAL】The round head wood screws assortment kit are made of high quality 304 stainless steel, anti-rust and corrosion resistance, and durable. It can be used in all kinds of extreme environment.

【SCREWS ASSORTMENT】The stainless steel pan head kit includes various sizes: #4x1/4", #4x3/8", #4x3/4", #4x1", #6x1/2",#6x5/8", #6x3/4", #6x1", #8x5/8", #8x3/4", #8x1", #8x1-1/4", #8x1-1/2", #10x1/2", #10x3/4", #10x1", #10x1-1/4", #12x2". Total is 495pcs.

【PRACTIAL ASSORTMENT KIT】It contains 495pcs screws, #4,#6,#8,#10 common sizes, which are most practical in daily life.

☛【 High Quality 】: the machine screw kit are made of 304 high quality stainless steel material, prevent rust, the density is 7.93 g/cm and with high temperature resistance of 1472°F.

☛【 Multi Screws Size 】: screw assortment includes M4 x 4mm/6mm/8mm/10mm/12mm/14mm/16mm/18mm/20mm screws, 30 pcs each size and 270 pcs matching nuts and flat washers,which can meet most of your demands

☛【 Widely Application 】: M4 phillips screws can be widely used in all kinds of precision machinery, classified instruments, instruments, electronic products, household appliances, communication products, locks, lamps, lights, toys, etc.

√ 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.

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

Premiun Material: Heavy duty screw bolts are made from 18-8 (304) stainless steel and coated with black oxide, which is certified, good look, strength and corrosion resistant.

Mighty Grip: these bolt screws feature deep wood screw coarse threads for superior holding and prevent stripping in the material; Can be applied in even severe environment. Often using with washer which distribute the pressure of the head evenly so that to prevent pull through.

Standard and Various Sizes: the kit includes 5 different most common used sizes: 1/4 x 1", 1/4 x 1-1/2", 1/4 x 2", 1/4 x 2-1/2", 1/4 x 3"; Diameter are all 1/4"; Thread Type are all Coarse (standard); Quantity: 108 pieces screws and washers in total (54 sets)

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.

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

SAE STANDARD SIZE: VIGRUE 390 SAE set screws kit contains 7 specifications (19 sizes total) with 7 matching wreches for easy apply, which generally includes 4-40, 6-32, 8-32, 10-24, 1/4"-20, 5/16"-18, 3/8"-16, packed in a plastic box, easy to install

FINE WORKMANSHIP: All the grub screws with coarse threads, have a cup point with a thin edge wich digs into the contact surface for a secure hold.

DURABLE MATERIAL: made of carbon steel set screw kit, with excellent anti-rust and corrosion resistance property, and won’t slip out easily.

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

Thread Diameter: 1/4 inch; Thread pitch: 1/20 inch; Thread length: 5/8", 3/4", 1", 1-1/4", 1-1/2", 2".

Drive Type: allen hex socket 3/16 Inch; Color: silver tone.

Convenient Box: 175pcs socket head cap screws nuts washers assortment kit, all of them are packed neatly in durable and sturdy box with clear size map for easy reach the size you need.

√ 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.

√Quality Material: made of 304 stainless steel set screw kit, with excellent anti-rust and corrosion resistance property, and won’t slip out easily.

√Assortment Kit: M2.5*4mm 30PCS, M2.5*5mm 30PCS, M2.5*6mm 30PCS,M3*3mm 20PCS, M3*4mm 20PCS, M3*10mm 20PCS, M4*4mm 30PCS, M4*6mm 30PCS, M4*8mm 30PCS, M5*5mm 30PCS, M5*8mm 30PCS, M5*10mm 30PCS, M6*6mm 25PCS, M6*10mm 25PCS, M8*8mm 20PCS, M8*12mm 20PCS; total is 450pcs.

√Handy Box: All grub screws and wrenchs are packed in a convenient plastic transparent storage box, easy to install and access.

✔【Multiple Common Sizes】Multiple sizes(1-1/4, 1-1/2,1-3/4,2) fit for when you need extra length to mount backsplash outlet extender or deep outlet box; These versatile flat head electrical screws are compatible with a number of devices for use on extended outlets

✔【Wide Applications】Cross recess head makes our device mounting screws become more suitable for fixed sockets, sockets, elbows, switches and dimmers, and apart from that, the long screws fit for embedded electrical boxes, residential or commercial electrical fasteners very well

✔【Reliable 304 Stainless Steel】The device mounting screws are not easy to rust, punched and have good corrosion resistance because of stainless steel, which makes truss head mounting screws can serve you for a long time

Wall Plate Screws White #6-32x3/8" *30 #6-32x1/2" *30 #6-32x3/4" *20 #6-32x1" *15

Long Outlet Screws #6-32x1-1/4" *15 #6-32x1-1/2" *15 #6-32x1-3/4" *10 #6-32x2" *10

Wall Plate Screws White with a slotted oval head, perfect for when you need to replace decorative screws versatile oval head light switch screws compatible with many devices and wall plates.

HEAD TYPE: Pan Head. Screw Type: Black Screws for Wood. Drive: Philips.

MATERIAL: 304 Stainless Steel, black Oxide. Anti rust, corrosion resistant.

PRACTICAL SIZES: #6, #8, including 11 different length, 260pcs black screws.

【Dimensions】Diameter: #8 | Head: Hex Washer,Wafer Head | Drive Type: External Hex(7mm),Phillips | Point Type: #2 | Quantity: 400pcs | Material: 410 Stainless Steel.

【Stronger Sheet Metal Screws】These sheet metal screws are made of 410 Stainless Steel(harder than 18-8; higher tensile strength than 304, 305, & others; more corrosion resistant), deep cut Philips drive so stripping heads is a thing of the past!

【Hex & Truss Head Self Tapping Screws】Not like others, we did market research and collected the most commonly used screw type and sizes, and allocated a reasonable quantity for each size. Paying and receiving are equal.