Delivery went smoothly, and I appreciate the careful packaging.
【Full Quantity Approx. 1800 pcs】Kyuhi Seira Screw SUS410 4x13 D6 Countersunk Head
Product Details
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We are selling off our entire stock of building materials at a great discount due to warehouse reorganization.
[Product Details]
Manufacturer: Kyuubiseira Co., Ltd.
Product Name: Pierce Screw (Drill Screw)
Size: 4mm x 13mm
Material: SUS410 (Stainless Steel)
Surface Treatment: Passivate
Head Shape: D6 Countersunk Head
Quantity: Approximately 1,800 pieces in total
(1,000 pieces in unopened box + approx. 800 pieces loose)
[Quantity Details]
The loose quantity was weighed using a kitchen scale.
(Calculated from a total weight of 1,269g, assuming 10 pieces weigh 7g)
The calculation results in approximately 1,810 pieces, but we have packed with a buffer, stating approx. 1,800 pieces to account for slight variations.
[Product Features]
These are high-quality screws from Kyuubiseira, favored by site workers for their excellent sharpness.
The drill tip shape is superior, allowing the screw to easily penetrate steel plates without pre-drilling.
Made of stainless steel, they are rust-resistant, and the D6 (small head) type is ideal for fastening in tight spaces, such as around window frames.
[Condition and Notes]
The contents are brand new and unused.
As they have been stored in a warehouse, the outer boxes may have dents, dirt, or marker writing. While the quality of the contents is not affected, please be aware of the condition of the outer packaging before purchasing if you are concerned about it.
[Shipping]
- We aim for prompt shipping within 24 hours via Rakuraku Mercari Bin.
- The loose screws will be placed in a bag, and the box will be folded and included, or reinforced for packaging.
We also welcome combined purchases with other items we have listed, such as 4x25mm!
If you purchase multiple items together, we will offer a discount on the shipping cost, so please feel free to comment.
Thank you!
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.

