Will these also work going into the door versus the jamb?

Yes, they work great for the door side also. Thanks ZZem Screw

How big is the drill bit?

Hi Joe, the drill bit is 5/16", Thanks for the question, ZZem Screw

The minimum quantity is a "pack of 4." Does that mean 1 pack of 4 screws? Or does it mean 4 packs of 4 screws each?

4pk pictured is what you get, meaning 4 in a pack.

Can i also use these in a hollow core door? Both my hinges and my door are stripped.

I'm not a door expert. I have a wooden framed metal clad outside door on my shop. At times the wind would pull the door hard and pull the screws loose. The upper screws striped and made the door hard to close and lock. I found the ZZen door screw repair kit on line. Best invention for a door since the hinge. Good complete kit easy to use and makes the door stronger then new. Very happy to find this repair item. Also great to buy a product that's made in the USA and is Veteran owned. Thank you for your service. George D. MR3, Nam 64/66

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4-Pack #9 x 3 Permanent Stripped Door Hinge Screw Hole Repair Kit

Product ID: 149185505

Details

Brand
ZZEM SCREW
Finish Type
Polished
Hole Count
4
Manufacturer
ZZem Screw
Material
Steel
Mounting Type
Door Mount

🔩4 steel ZZem screws included

⏱️3-minute quick fix

🛠️All-in-one kit (except drill)

259 zł

Duties & taxes included

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Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Secure your space, upgrade your door game!

COMPLETE PRO GRADE KIT - Includes steel screws, drill bit, Torx & Phillips drivers for seamless installation
FAST PERMANENT REPAIR - Fix stripped screw holes in just 3 minutes—no more sagging doors!
VERSATILE WOOD APPLICATIONS - Perfect for door hinges, strike plates, gate latches, handrails & more
VETERAN DESIGNED DURABILITY - Crafted by a US Navy Veteran for unmatched reliability and long-lasting performance
ENHANCED SECURITY STRENGTH - 3-inch deep screw anchoring reinforces door frames against forced entry

The ZZem Screw 4-Pack #9 x 3 Door Hinge Screw Hole Repair Kit offers a fast, permanent solution to stripped screw holes in wood. Designed for professional-grade reinforcement, it includes steel screws, drill bit, and driver bits to restore and strengthen door hinges, strike plates, and more. Engineered for durability and enhanced home security, this veteran-designed kit installs in minutes and ensures your doors stay tight and secure.

Specifications

ASIN	B0DXQZF1KL
Best Sellers Rank	#30,188 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #59 in Door Hinges
Brand Name	ZZEM SCREW
Customer Reviews	4.7 4.7 out of 5 stars (102)
Finish Types	Polished
Hole Count	4
Item Weight	4.48 ounces
Manufacturer	ZZem Screw Inc.
Manufacturer Part Number	439ZZSteel
Material Type	Steel
Model Number	439ZZSteel
Mounting Type	Door Mount
UPC	864896000380
Unit Count	4 Count

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259 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered 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 Poland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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