Best Button Head Cap Screw 20

iexcell 900 Pcs Metric M3/M4/M5 x 8/10/12/16/20 Alloy Steel 10.9 Grade Hex Socket Button Head Cap Screws Bolts Nuts Washers Assortment Kit, Black Oxide Finish

✔ Includes 300 Pcs, 15 Sizes, Hex Socket Button Head Cap Screws: M3 x 8, M3 x 10, M3 x 12, M3 x 16, M3 x 20, M4 x 8, M4 x 10, M4 x 12, M4 x 16, M4 x 20, M5 x 8, M5 x 10, M5 x 12, M5 x 16, M5 x 20.
Screw Drive Style: Internal Hex Drives, Known as Hex Socket Drives, Hex Size: 2.0 mm(M3), 2.5 mm(M4), 3.0 mm(M5).
✔ Includes 300 Pcs, 3 Sizes Nuts, M3-P0.5, M4-P0.7, M5-P0.8, Meet Different Applications.
✔ Includes 300 Pcs, 3 Sizes Washers, Φ3, Φ4, Φ5: Add Touch Area to Meet Special Condition In Some Cases and Protect Parts from Being Damaged.
✔ Includes 3 Pcs Hex Key: 1 Pcs Hex Size: 2.0 mm for M3 Screws, 1 Pcs Hex Size: 2.5 mm for M4 Screws, 1 Pcs Hex Size: 3.0 mm for M5 Screws, to Drive These Screws Conveniently and Easily.
✔ Material of Screws: Alloy Steel, Black Oxide Finish, High Strength And Anti-rust.
Strength Grade: 10.9 Grade, Tensile Strength: 1040N/mm², Hardness: HRC 32-39 ✔ Material of Nuts and Washers: Alloy Steel, Black Oxide Finish ✔ Material of Hex Key: Chrome-Vanadium Steel, Nickel Plated, Higher Strength And Anti-rust ✔ Package: These Screws, Nuts, Washers and Hex Keys Packed In a Sturdy Easy-use Plastic Storage Case, Organized Conveniently and Easily.

√ Screw Size: 1/4-20x3/8",1/4-20x1/2",1/4-20x5/8",1/4-20x3/4",1/4-20x1",1/4-20x1-1/4",1/4-20x1-1/2" Button Head Screws/Bolts pair with washers and nuts..
√ What You Get: 305pcs/7 most commonly used sizes 12.9 Alloy Steel 1/4-20 black bolts nuts washers..
√ CUSTOMER SUPPORT: Any issue of this 1/4-20 screw kit, pls contact us by email or Q&A. Satisfaction guaranteed. Money back or exchange..

Includes 12pcs of 3342 - 1/4-20 x 0.5 inch flanged button head socket cap screw.
Includes 12pcs of 3382 - 1/4-20 slide-in economy t-nut.

Screw Drive Style: Internal Hex, Hex Size 6 mm.
✔ Thread Dia.: 8mm, Thread Pitch : 1.25mm.
✔ 5 Sizes: M8 x 30mm, M8 x 35mm, M8 x 40mm, M8 x 45mm, M8 x 50mm, Fully Threaded.
✔ Stainless Steel 304, Anti-corrosion in Various Environments.
✔ Package : Total 20 Pcs Hex Socket Head Cap Screws, 4 of Each Size, Come in an Easy-use Separated Girds Storage Box.

Inch Set (7 PC) : 6#, 8#, 10#, 1/4'', 5/16'', 3/8'', 1/2''.
Cap screw counterbores are tools that are used to create a recess in a workpiece for the head of a cap screw. You might use a cap screw counterbore when you need to attach a component to your workpiece using cap screws, and the component has a thickness that is greater than the length of the cap screw..
Another reason you might use a cap screw counterbore is if you want to create a flush or countersunk appearance for the heads of the cap screws on your workpiece. A cap screw counterbore allows you to create a recess in the workpiece that is sized to fit the head of the cap screw, giving the screw a flush or countersunk appearance..
Overall, cap screw counterbores can be useful when you need to attach components to a workpiece using cap screws, or when you want to create a flush or countersunk appearance for the heads of the cap screws on your workpiece..

【Head Type】Button Dia./Thread Size: 1/4"-20.
【Screw Length】1/4-20x1/2",1/4-20x3/4",1/4-20x1",1/4-20x1-1/4",1/4-20x1-1/2" Button Head Screws/Bolts with matching washers and nuts..
【Quantity】Contains 315pcs/5 sizes of the most commonly used 12.9 Alloy Steel Button Head Socket Screws/Bolts Nuts Washers..

Metric Set (7PC): M3, M4, M5, M6, M8, M10, M12. 3 Flute..
Cap screw counterbores are tools that are used to create a recess in a workpiece for the head of a cap screw. You might use a cap screw counterbore when you need to attach a component to your workpiece using cap screws, and the component has a thickness that is greater than the length of the cap screw..
Another reason you might use a cap screw counterbore is if you want to create a flush or countersunk appearance for the heads of the cap screws on your workpiece. A cap screw counterbore allows you to create a recess in the workpiece that is sized to fit the head of the cap screw, giving the screw a flush or countersunk appearance..
Overall, cap screw counterbores can be useful when you need to attach components to a workpiece using cap screws, or when you want to create a flush or countersunk appearance for the heads of the cap screws on your workpiece..

Screw Length 16mm to 40mm: this cap screws kit include sizes M8 x 16mm/20mm/25mm/30mm/40mm button head screws bolts with matching washers and nuts..
Quantity: the metric M8 screws kit contains 5 sizes of the most in-demand models 304 stainless steel button head socket screws nuts washers, totally 135pcs.
Great Performance: 304 stainless steel 18-8, which features strength, offers superior rust resistance and the excellent oxidation resistance in bad environment.
Easy to Get the Exact Sizes: The bolts and nuts come in a portable firm clear box with corresponding sizes label. It is convenient for you to put away and store, which allow you to get the one you need quickly, improving your project efficiently..