Products for bench top machinists | LittleMachineShop.com

Screw Checker, Large Metric, PEC

Screw Checker, Large Metric, PEC - Main image
$17.97 $29.95 In stock

Screw checkers made by Product Engineering Corporation (PEC) made in the US are the industrial standard for precision and durability.

Made from a high-quality chrome-plated carbon steel which offers superior wear resistance and long-lasting, crisp graduations. Fully hardened, tempered and etched with precision.

Screw checkers provide a quick way to measure standard threads. They provide all the information you need for screws; diameter, length, threads per inch, hole size and even tap drill sizes.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.8 / 5 · 5 reviews)

Sofia R. ★★★★★

I've been using this screw checker daily in my workshop and the metric sizing is spot-on for all my fasteners. The chrome-plated carbon steel really does hold up well against the occasional drop on concrete.

Scarlett ★★★★★

The chrome-plated finish feels rock solid, and the large metric markings are crisp enough to read at a glance even in dim workshop light. I've used it to sort out a mixed bin of bolts and it's already saved me from guessing wrong on a few stubborn sizes.

Joseph Z. ★★★★★

Finally got around to comparing my random bin of metric screws, and this checker sorted them all in a few minutes. The carbon steel body has a nice solid heft that makes it feel like it'll outlast my toolbox.