OEM Countersink: 90°
The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with a 90° angle. It features a 3/32 in body diameter and a 1/4"-28 shank thread size, constructed from carbide. This product is identified…
SKU 3G-OTH-186065
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with a 90° angle. It features a 3/32 in body diameter and a 1/4"-28 shank thread size, constructed from carbide. This product is identified by manufacturer part number 421540.
Frequently Asked Questions
What is the APPROVED VENDOR 421540 countersink used for?
The APPROVED VENDOR 421540 is a 90° three-flute countersink used to create a conical recess for flat-head screws in metalworking and machining applications. Its carbide construction suits hardened materials, and the 1/4"-28 threaded shank allows secure mounting in toolholders.
What are the specifications of the APPROVED VENDOR 421540 countersink?
The APPROVED VENDOR 421540 countersink has a 90° angle, 3 flutes, a 3/32 in body diameter, and a 1/4"-28 shank thread size. It is made of carbide and identified by manufacturer part number 421540. This threaded-shank design provides stable, repeatable countersinking.
Where to buy the APPROVED VENDOR 421540 countersink worldwide?
3G Electric supplies the APPROVED VENDOR 421540 countersink to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this carbide threaded-shank countersink.
How to select the correct countersink for a flat-head screw?
Select a countersink with the same angle as your screw head — 90° is standard for most flat-head screws. Match the body diameter to the screw head size and ensure the shank fits your toolholder. The APPROVED VENDOR 421540 uses a 1/4"-28 threaded shank for secure mounting.
OEM Products
3G Electric supplies OEM threaded-shank three-flute countersinks. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
