Assorted colors and thicknesses of glazelock shims U-shaped extended horseshoe 3-1/2 by 1-1/2 inch with 1/2 inch slot

The image shows various glazelock shims including u-shaped horseshoe shims in red and blue with a 1/2 inch slot

Blue red and black interlocking stackable glazelock shims extended u-shaped horseshoe shims 3-1/2 x 1-1/2 with 1/2 slot

Black plastic glazelock shims with textured ribbed surface for secure installation 3-1/2 x 1-1/2 inch horseshoe shape

Brown u-shaped magnetic lock plate glz09 by glazelock inc made in usa for glazelock shims and extended horseshoe shims

Black plastic u-shaped glazelock shim with screw hole 3-1/2 x 1-1/2 inch extended horseshoe shims

Blue plastic extended u-shaped horseshoe shim from glazelock inc measuring 3-1/2 x 1-1/2 with 1/2 slot

Red plastic glazelock extended u-shaped horseshoe shim 3-1/2 x 1-1/2 with 1/2 inch slot for precise spacing

Brown glossy u-shaped glazelock shims with american flag sticker made in usa for horseshoe applications

Black matte u-shaped glazelock shims with american flag emblem for extended horseshoe shim use

Red u-shaped plastic glazelock shims with made in usa label for extended horseshoe shim use 3-1/2 x 1-1/2 inches

Bright blue silicone glazelock extended u-shaped horseshoe shims with made in usa label and american flag emblem

Glazelock - Leveling Shims

Glazelock® Extended U-Shaped Horseshoe Shims — 3-1/2" x 1-1/2" | 1/2" Slot

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Regular price$71.23

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Size —

Size

1/2"

1/4"

1/8"

45307

Count

250pc

1000pc

500pc

100pc

360pc (12x30)

720pc (12x60)

1440 (12x120)

Father's Day — Order by June 10 for delivery by June 15. Free Shipping, Continental US over $49.99

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Made in USA

Glazelock® U-Shaped Horseshoe Shims — 3-1/2" x 1-1/2", 1/2" Slot | Made in USA

Glazelock® Extended U-Shaped Horseshoe Shims provide superior stability with a longer 3-1/2" x 1-1/2" profile. The extended length distributes load more effectively than shorter shims, making these ideal for heavy window units, large cabinet installations, and load-bearing applications. Made in USA.

Key Specifications

Dimensions: 3-1/2" x 1-1/2"
Slot: 1/2"
Shape: U-shaped (horseshoe)
Material: High-impact plastic
Colors: Assorted
Origin: Made in USA

Key Benefits

Extended 3-1/2" Length — Greater load distribution and stability than standard shorter shims
Horseshoe Shape — Fits around pipes, bolts, and irregular surfaces
1/2" Slot — Fits standard pipes and anchor hardware
Assorted Colors — Easy thickness identification on the job site
Made in USA — Consistent quality since 1997

Perfect For

Large and heavy window unit installation
Commercial door projects requiring extra support
Large cabinet and countertop installations
Industrial machinery leveling
Load-bearing applications requiring extended support

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FAQs

What are Glazelock shims used for? +

Glazelock interlocking plastic shims are used for leveling and aligning windows, doors, frames, and other construction applications. Their interlocking design locks stacked shims together to prevent shifting during and after installation.

What makes Glazelock different from regular shims? +

Glazelock shims feature a patented interlocking design that locks stacked shims together so they won't shift or slide out of position — a common problem with standard plastic or wood shims.

Are Glazelock shims Made in USA? +

Yes. Glazelock shims have been Made in the USA since 1997.

Are these shims color-coded? +

Yes. Glazelock shims are color-coded by thickness for easy identification during installation, saving time on the job site.

What pack sizes are available? +

Available in assorted packs for professional and DIY leveling applications.

Glazelock® Extended U-Shaped Horseshoe Shims — 3-1/2" x 1-1/2" | 1/2" Slot

Glazelock® U-Shaped Horseshoe Shims — 3-1/2" x 1-1/2", 1/2" Slot | Made in USA

Key Specifications

Key Benefits

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Glazelock® Extended U-Shaped Horseshoe Shims — 3-1/2" x 1-1/2" | 1/2" Slot

Glazelock® U-Shaped Horseshoe Shims — 3-1/2" x 1-1/2", 1/2" Slot | Made in USA

Key Specifications

Key Benefits

Perfect For

14-Day Returns

Secure Checkout

Hear it from them

Customer Reviews

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