MB Tex Half Box

Specifications

How to choose Tapping screws

Points to check when selecting, with the values for this product (MB Tex Half Box).

1. 1. Select the range that matches the steel substrate thickness

   Drill screws have both an upper and lower limit on the steel sheet thickness they can drill through with the cutting tip. The listed products have a lower limit of 1.6 mm and an upper limit of 2.3 to 3.2 mm. If the substrate is thicker than the range, the cutting tip wears before the hole is drilled; if thinner, the thread engagement is insufficient. Check both the upper and lower limits against the plate thickness of the substrate steel.

2. 2. Determine the length from the total fastening thickness

   The overall length is determined by the combined thickness of the upper panel and substrate, plus the length needed for the cutting section to fully penetrate. The listed products range from 28 to 100 mm, and the upper and lower fastening thickness limits are specified for each product. If the thread engages before the cutting section (7 to 7.5 mm long) passes through the substrate, the screw may break, so confirm within the fastening thickness range.

3. 3. Choose between full-thread and half-thread types

   Half-thread screws have a plain cylindrical section under the head, so they can pull the upper panel down to the substrate without being pushed up by the threads, which suits fixing thick boards. In the listed products, the 35 and 45 mm lengths are full-thread and 50 mm and longer are half-thread. Select the type according to the upper panel thickness and fixing method.

4. 4. Check the thread outer diameter and cutting tip outer diameter

   The thread outer diameter affects holding power and pilot hole diameter. The listed products have outer diameters of 4.2 to 5 mm, and the cutting tip outer diameter is 3.5 to 4.2 mm. The cutting tip outer diameter is smaller than the thread outer diameter and corresponds to the pilot hole for forming the internal thread. Select the nominal size according to the load conditions, the hole diameter in the upper panel, and the dimensions of the mating member.

5. 5. Match the Phillips drive size and head style

   Using a bit that does not match the Phillips drive number increases cam-out (bit slipping out) and damage to the recess. For a flush finish, select a countersunk head, and confirm that the head outer diameter of 10 to 12 mm fits within the seating surface or board surface. Match the bit number to the bits used on site.

6. 6. Select material and surface treatment for the service environment

   Steel products with trivalent chromate plating are available for indoor use, and SUS410 products with corrosion-resistant treatment are available for outdoor or corrosive environments. SUS410 is a martensitic grade that gains hardness by quenching, and is used for drill screws. However, its corrosion resistance is inferior to austenitic grades such as SUS304.

This guide was written by AI based on the listed products' documents and specification items.

About Tapping screws and all products

Description

A slim boxed package with roughly half the quantity and price of conventional box products. Handling of stainless steel items has been strengthened. Labels show the model number, standard, and pack quantity (e.g., TW4X13SG-HB, 500 pcs per box). Packed in outer cartons of 10 boxes.

FAQ

Q. What kind of product is the MB Tex Half Box?

A. It is a slim boxed package with roughly half the quantity and price of conventional box products, suited to small-quantity purchases by professionals. Stainless steel items are also easier to purchase.

Q. Can stainless steel items be selected in the MB Tex Half Box?

A. Handling of stainless steel items has been strengthened. For example, model TW4X13SG-HB contains 500 pcs per box.

Q. What information is shown on the box label of the MB Tex Half Box?

A. The model number, standard, and pack quantity are shown. For example, TW4X13SG-HB contains 500 pcs per box.

Q. How many items does the MB Tex Half Box include, and what are the box size and packing unit?

A. The product includes 62 items. The box depth is 140 mm, and boxes are packed in outer cartons of 10 boxes.

Written by AI based on the content of the source documents.

Source documents

• Catalog MBテクス 少量パッケージ一覧 Cute Pack / Cool Pack / Half BOX 2 pages
  Found on: https://www.jpf-net.co.jp/ebook.html