OEM APPROVED VENDOR 421536 Carbide Threaded-Shank Three-Flute Countersink
The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with a 90° angle, a 1/2 in body diameter, and a 1/4"-28 shank thread size. It is made of carbide and carries the manufacturer part number…
SKU 3G-OTH-186127
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ask a question
Request a QuoteAsk a question
Product Description
The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with a 90° angle, a 1/2 in body diameter, and a 1/4"-28 shank thread size. It is made of carbide and carries the manufacturer part number 421536.
Frequently Asked Questions
What is a 90° three-flute countersink used for?
A 90° three-flute countersink creates a conical recess in a workpiece to match the angle of a flat-head screw or bolt. It is commonly used in metalworking and machining to ensure flush fastener seating, reducing stress risers and improving assembly finish.
What are the specifications of the APPROVED VENDOR 421536 countersink?
The APPROVED VENDOR 421536 countersink has a 90° angle, three flutes, a 1/2 in body diameter, and a 1/4"-28 threaded shank. It is made of carbide for durability in hard materials. The manufacturer part number is 421536.
Where to buy the APPROVED VENDOR 421536 countersink worldwide?
3G Electric supplies the APPROVED VENDOR 421536 countersink to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this carbide threaded-shank countersink.
How to select the correct countersink for a flat-head screw?
Match the countersink angle to the screw head angle—typically 82° for inch screws or 90° for metric. Ensure the body diameter exceeds the screw head, and the shank fits your tool holder. For the APPROVED VENDOR 421536, the 90° angle and 1/4"-28 threaded shank suit metric flat-head fasteners.
OEM Products
3G Electric supplies OEM threaded-shank three-flute countersinks. We supply genuine products and their technical documentation.