Reference Guides
Free charts and guides for sizing, selecting and specifying fasteners. Bookmark this page, share it with your team, or call us at (201) 845-5700 if you need help finding the right part.
Sizing & ThreadsStrength & MaterialsSelectionSpec Sheets
Sizing & Threads
Dimensions, thread sizes and the drill to use with them.
Tap & Drill Bit Size Chart
The right tap drill for every inch and metric thread size.
Open chart →Machine Screw Size Chart
Diameters, threads per inch and head dimensions for machine screws.
Open chart →Nut & Washer Size Chart
Match nuts and washers to bolt and screw sizes.
Open chart →Metric vs Imperial Conversion Chart
Convert between inch and metric fastener sizes and find the closest match.
Open chart →Strength & Materials
Grades, materials and finishes, and when to use each.
Bolt Grade Markings & Strength Chart
Identify Grade 2, 5, 8 and metric property classes by head marking and strength.
Open chart →Fastener Material & Finish Guide
Zinc, black oxide, stainless and more: what each finish does and where it holds up.
Open guide →Fastener Material Comparison Chart
Steel, stainless, brass, aluminum and nylon side by side.
Open chart →Screw Material Comparison Guide
Choosing a screw material for strength, corrosion resistance and cost.
Open guide →Selection
Find the right fastener for the job.
Fastener Selector
Answer a few questions about your application and get a recommended fastener type.
Start →Anchor & Concrete Fastener Chart
Compare wedge, sleeve, drop-in and screw anchors by base material and load.
Open chart →Screw Head Types
A visual reference to head styles and drive types.
Open chart →Spec Sheets
Manufacturer dimensions and specifications.
Groo-V Tip® (GRT®) Masonry Drill Bits
Sizes and specs for Relton multi-purpose masonry bits.
View specs → PDFHex Flange Bolts
Dimensions per DIN 6921.
Download → PDFNut Threads
Nut thread dimensions and specifications.
Download → PDFSocket Set Screws
Dimensions and point styles for socket set screws.
Download →Still not sure what you need?
Send us a sample, a print or a part number and we will find it.
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