Self Tapping 304 Stainless Steel Countersunk Head Screws M4

• Tapping screw is one of the threaded fasteners that can be tapped out of the matching female thread in the pre-drilling of metal or non-metal materials. Tapping screw with high tension, single piece, unilateral combination features

• The company mainly produces high-strength fasteners business, bolts and nuts are the main, the main standard are DIN/ANSIASME/JIS/UNI/ISO/AS/BS/GB and so on. The product massively applies in the bridgeroadthe petroleum pipeline facilitythe wind power generation and steel structure project. Carbon steel bolts mainly have 4.8, 5.8, 6.8, 8.8, 10.9, 12.9, nuts mainly have 4, 6, 8, 10, the main material of stainless steel fastener is 201304316. QBH from its establishment to he present, after ten years of development, it is equipped with perfect testing equipment, and SGS and TUV have a good cooperation, each batch of products is accompanied by a 3.1 or 3.2 certifi

• Screw Thread d

  M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22

  P Series 1 Series 2 Series 3 d Series 1 Series 2 Series 3 e ≈ m s max=nominal size (h13) min t Series 1 Series 2 Series 3 per 1000 units≈kg Series 1 Series 2 Series 3

  0.7 0.8 1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 - - - 1 1.25 1.5 1.5 1.5 2 2 2 - - - - 1 1.25 - - 1.5 1.5 1.5 3.5 4.5 5.3 6.9 8.6 10.4 12 14.1 15.5 17.6 19.6 - - - 7.1 9 10.7 12.7 14.8 16.2 18.3 20.3 - - - - 9.3 11 - - 16.8 18.8 20.8 8.1 9.2 11.5 15 19.6 21.9 25.4 27.7 31.2 34.6 36.9 2.5 2.5 3 3.5 4 4.5 5 5 5.5 6 6 7 8 10 13 17 19 22 24 27 30 32 6.78 7.78 9.78 12.73 16.73 18.67 21.67 23.67 26.67 29.67 31.61 0.3 0.4 0.4 0.5 0.5 0.6 0.6 0.7 0.7 0.8 0.8 - - - 0.4 0.5 0.6 0.6 0.7 0.7 0.8 0.8 - - - - 0.5 0.6 - - 0.7 0.7 0.7 0.17 0.28 0.4 0.9 1.4 1.9 2.5 3.4 4.1 5.8 6.4 - - - 0.7 1.4 1.9 2.5 3.4 4.1 5.8 6.4 - - - - 1.4 1.9 - - 4.1 5.1 5.6

  Screw Thread d

  M24 M27 M30 M33 M36 M39 M42 M45 M48 M52

  P Series 1 Series 2 Series 3 d Series 1 Series 2 Series 3 e ≈ m s max=nominal size (h13) min t Series 1 Series 2 Series 3 per 1000 units≈kg Series 1 Series 2 Series 3

  3 3 3.5 3.5 4 4 4.5 4.5 5 5 2 2 2 2 3 3 3 3 3 3 1.5 - - - - - - - - - 21 24.2 26.6 29.8 32.2 35.2 37.6 40.9 43.9 48.2 22.5 25.5 28.5 31.5 33.6 36.6 39.8 42.8 45.8 49.8 22.8 - - - - - - - - - 41.6 47.3 53.1 57.7 63.5 69.3 75 80.8 86.5 92.4 7 7 8 8 9 9 11 12 14 16 36 41 46 50 55 60 65 70 75 80 35.61 40.61 45.61 49.61 54.54 59.54 64.54 69.54 74.54 79.54 0.9 1 1.1 1.2 1.3 1.3 1.4 1.5 1.6 1.7 0.9 1 1 1 1.3 1.3 1.4 1.5 1.5 1.5 0.7 - - - - - - - - - 9.5 13 17.5 22 29 32 45 64 80 95 9.5 13 16 18.5 29 32 45 64 75 80 7.4 - - - - - - - - -

  ①,Material: a)Spring steel according to DIN 17222 b)Other materials subject to agreement

  ​​​​

PACKING

QBH BULK

20-25KG/CTN,36CTNS/PALLET

20-30KG/BAGS,36BAGS/PALLET

ONE TON/BOXES

50KG/ IRON DRUM,12 IRON DRUMS/PALLET

QBH SMALL PACKING

6boxes/CTN,36CTNS/PALLET

Packing in small boxes according to customer’s requirements

Packing in plastic bag according to customer’s requirements

QBH PALLET TYPE

SOLID WOOD FUMIGATION PALLET

EURO Pallet

THREE SPLINT PALLET

WOODEN BOX

The advantages of QBH

• QBH brand sales to the main quality assurance.
• Years of export trade management, excellent service, word-of-mouth guarantee.
• By working with TUV,escort for quality.
• Customization of non-standard parts can be made according to customer's requirements and drawings.
• For quality customers,we can provide a certain credit period.