GRAINGER 400428PK25 Knife Thread Insert System of Measurement Inch Insert Diameter 29/64 in Overall Length 1/2 in Internal Thread Size 1/4 In.-28 Thread Direction Right Hand Thread Type Fine Material Brass Material Grade/Class C3604 Finish Plain Drive Type Slotted Drill Bit Size 25/64 in Compatible Material Wood Minimum Material Thickness 1 in Maximum Hole Diameter 0.391 in Manufacturer Location Globally Sourced Compatible Grainger Part Number 4ZE54 Compatible Manufacturer Part Number DT-428
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Frequently Asked Questions
Shipping
How long is the lead time for this product?
Lead times vary depending on stock availability, supplier location and freight method.
Orders processed here will take 10 - 14 business days to arrive. Overseas deliveries can take anywhere from 14 - 21 days.
Estimated lead time for this product: 3 Days.
Do you ship overseas?
At this time, our shipping is limited to Australia only.
Can I return my product?
We always aim for make sure our customers love our products, but if you do need to return an order, we’re happy to help. Just email us directly and we’ll take you through the process.
View our refund and return policy here
What shipping carriers do you use?
We use suitable freight partners based on item size, weight, urgency and destination.
View our Shipping Policy here
Product
Can I get my product personalised?
It depends on the creator and the product. All options are outlined on the product page, so look out for customisation options there.

