Home > Lag Screws > Square Head Lag Screws

Old West Iron's Hardware line offers two different styles of square head lag screws, our HCL-07 Standard Square Head Lag Screw, and our HCL-10 Irregular Hand Hammered Square Head Lag Screw. These architectural fasteners, are true to the look of the old hardware found in the wild west in the 1800's. Our HCL-07 Standard Square Head Lag Screws are offered with a marking free plain smooth square head, hand hammered square head, and a hand hammered pyramid square head. Square head lags can be added to nearly any project to give a square rivet look and they are the ideal fastener for installing custom architectural plates and braces to keep a high end finished look to the pieces. These specialty fasteners are also structural and come in long lengths not often found at hardware stores, long lengths are commonly used to install mantles above fireplaces, and when used with our decorative washers create a beautiful statement piece using authentic hardware.
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black Square head lag bolt 1/4" dia HCL-07 5/16" Lag x 1/2" Square Head Square head black lag bolt 3/8"
HCL-07 1/4" Lag x 3/8" Square Head Lag
Base Price: $0.58
Sale Price: $0.53
Savings: $0.05
HCL-07 5/16" Lag x 1/2" Square Head
Base Price: $0.85
Sale Price: $0.77
Savings: $0.08
HCL-07 3/8" Lag x 9/16" Square Head Lag
Base Price: $1.18
Sale Price: $1.07
Savings: $0.11
1/4" diameter lag with 3/8" square head
This item has a pointed tip and is designed to screw into wood.
5/16" diameter lag screw with 1/2" square head
This item has a pointed tip and is designed to screw into wood.


3/8" Diameter Lag screw with a 9/16" square head
This item has a pointed tip and is designed to screw into wood.
1/2" dia square head lag HCL-07 5/8" Lag x 15/16" Square Head Lag 3/4" dia Square Head Lag bolt
HCL-07 1/2" Lag x 3/4" Square Head Lag
Base Price: $2.00
Sale Price: $1.90
Savings: $0.10
HCL-07 5/8" Lag x 15/16" Square Head Lag
Base Price: $4.63
Sale Price: $4.17
Savings: $0.46
HCL-07 3/4" Lag x 1 1/8" Square Head
Base Price: $6.80
Sale Price: $6.12
Savings: $0.68
1/2" diameter lag with 3/4" square head
This item has a pointed tip and is designed to screw into wood.
5/8" diameter lag with 15/16" square head
This item has a pointed tip and is designed to screw into wood.
3/4" diameter lag with 1 1/8" square head
This item has a pointed tip and is designed to screw into wood.
HCL-10 3/8" Lags x 9/16" Rustic Irregular Square Head HCL-10 1/2" Lag x 3/4" Rustic Irregular Square Head HCL-10 1/4" Lag x 7/16" Rustic Irregular Square Head Lag
HCL-10 3/8" Lags x 9/16" Rustic Irregular Square Head
Base Price: $3.18
Sale Price: $1.97
Savings: $1.21
HCL-10 1/2" Lag x 3/4" Rustic Irregular Square Head
Base Price: $5.50
Sale Price: $5.05
Savings: $0.45
HCL-10 1/4" Lag x 7/16" Rustic Irregular Square Head Lag
Base Price: $1.70
Sale Price: $1.63
Savings: $0.07
These are irregular hand hammered square heads, they will not look exactly alike, hammer marks will vary. These are irregular hand hammered square heads, they will not look exactly alike, hammer marks will vary. These are irregular hand hammered square heads, they will not look exactly alike, hammer marks will vary.
HCL-10 3/4" Lag x 1 1/8" Rustic Irregular Square Head HCL-10 5/16" Lag x 1/2" Rustic Irregular Square Head Lag HCL-10 5/8" Lag x 15/16" Rustic Irregular Square Head
HCL-10 3/4" Lag x 1 1/8" Rustic Irregular Square Head
Base Price: $6.60
Sale Price: $6.04
Savings: $0.56
HCL-10 5/16" Lag x 1/2" Rustic Irregular Square Head Lag
Base Price: $2.50
Sale Price: $2.35
Savings: $0.15
HCL-10 5/8" Lag x 15/16" Rustic Irregular Square Head
Base Price: $6.20
Sale Price: $5.68
Savings: $0.52
These are irregular hand hammered square heads, they will not look exactly alike, hammer marks will vary. These are irregular hand hammered square heads, they will not look exactly alike, hammer marks will vary. These are irregular hand hammered square heads, they will not look exactly alike, hammer marks will vary.
HCL-10 1/4" Lag x 7/16" Stainless Steel Irregular Square Head HCL-10 5/16" Lag x 1/2" Stainless Steel Irregular Square Head HCL-10 3/8" Lags x 9/16" Stainless Steel Irregular Square Head
HCL-10 1/2" Lag x 3/4" Stainless Steel Irregular Square Head HCL-10 5/8" Lag x 15/16" Stainless Steel Irregular Sqaure Head
   
 
These square head lag bolts can be installed with 8 Point Sockets : 1/4" bolt use 3/8" socket - 5/16" bolt use 1/2" socket -3/8" bolt use 9/16" socket - 1/2" bolt use 3/4" socket - 5/8" bolt use 15/16" socket - 3/4" bolt use 1 1/8" socket.