What is the ideal screw length for assembling 2x4's at a right angle (90 degrees)?

2 1/2 is the right length . make sure to adjust your jig first.

will it fit a 3/8 inch pocket hole?

The Kreg SML-S250B-50 will work with the standard Kreg 3/8" pocket hole.

Are these authentic from Kreg? When I compare the packaging they look different.

Yes, Pattern is an authorized seller for KREG on Amazon. We work closely with them and provide their new and authentic products on Amazon. If you would like further confirmation, please contact the brand directly at 1 (800)-447-8638. Please let us know if you ever have a problem with any of the products you buy on Amazon through Pattern. We are happy to help.

I tried to use these to join 2x6 boards but the screw tip comes through the opposing side I have the bit collar set to the proper depth. Any ideas?

Are you setting the depth at the shoulder or at the tip? I set at the shoulder and it works for me. Try putting the jig at 1-1/2 inches and then putting the bit in the jig and setting the collar so the bit almost touches the base of the jig. The object is to have the bit exit the first piece of wood at the center of the wood (3/4" from each side for 1-1/2 inch 2*4) scott vmtwcom

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Kreg SML-C250B-50 Blue Kote Pocket Screws, 2 1/2-Inch, Coarse Thread, Maxi-Loc Head (50 Count)

Kreg SML-C250B-50 Blue Kote Pocket Screws, 2 1/2-Inch, Coarse Thread, Maxi-Loc Head (50 Count)

Product ID: 114317734

Details

Exterior finish
Blue
Head style
Multi-Lobe
Item dimensions L x W x H
5.1 x 7.6 x
Material
Steel
Thread size
8

🔩2.5-inch coarse thread

⚙️Maxi-Loc washer head for secure fit

🛡️3-layer Blue-Kote rust resistance

4541 som

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Description

🔧 Screw it right, screw it tight — join the elite woodworker’s club!

PRO GRADE DRIVE SYSTEM - Square drives reduce cam-out for smooth, reliable screw driving
EFFORTLESS INSTALLATION - Self-tapping coarse threads eliminate the need for pilot holes, saving you time
RUST RESISTANT DURABILITY - 3-layer Blue-Kote coating keeps screws corrosion-free even in damp environments
TRUSTED BY WOODWORKING PROS - Kreg’s premium screws bridge the gap between your vision and flawless craftsmanship
PRECISION POCKET HOLE PERFORMANCE - Maxi-Loc washer head ensures tight, slip-free joints every time

Kreg SML-C250B-50 Blue-Kote Pocket Screws are 2.5-inch, coarse thread, self-tapping screws with a Maxi-Loc washer head and a 3-layer rust-resistant Blue-Kote finish. Designed for pocket-hole joinery, these screws deliver secure, slip-free fastening ideal for treated lumber and damp conditions. Trusted by professionals, they simplify woodworking with durable, corrosion-resistant performance in a convenient 50-count pack.

Specifications

ASIN	B001717PGI
Best Sellers Rank	62,161 in DIY & Tools ( See Top 100 in DIY & Tools ) 880 in Screws (DIY & Tools)
Brand Name	Kreg
Colour	No Color
Compatible Groove Diameter	0.38 Inches
Customer Reviews	4.8 4.8 out of 5 stars (1,612)
Drive System	Slotted
Exterior Finish	Blue
Fastener Size	No. 2
Fastener Type	self-tapping screws,wood screws
Finish Types	blue
Global Trade Identification Number	00647096415785
Head Type	Flat
Included Components	Kreg SML-C250B-50 Blue-Kote WR Pocket Screws 2-1/2-Inch, 8 Coarse, Washer-Head, 50-Count
Item Diameter	4 Millimetres
Item Dimensions	5.1 x 7.6 x 12.7 centimetres
Item Type Name	Pocket Screws 2-1/2-Inch, 8 Coarse, Washer-Head, 50-Count
Item Weight	0.47 Pounds
Manufacturer	Kreg Tool Inc
Manufacturer Part Number	SML-C250B-50
Material Type	Steel
Metal	Alloy Steel
Model Number	SML-C250B-50
Number Of Items	1
Number of Pieces	50
Outside Diameter	6.3 Centimetres
Screw Head Style	Multi-Lobe
Screw Point Style	Self-Drill Point
Set Name	Kreg Blue-Kote Pocket-Hole Screws - SML-C250B-50
Set Screw Thread Type	Coarse Thread
Size	No Size
Thread Class	1B
Thread Coverage	Fully Threaded
Thread Size	8
Thread Style	Right Hand
Thread Type	UNC
UPC	732233440918 647096415785 752913205224
Unit Count	50.0 count

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4541 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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