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10 Oct , 2026
Ferry International’s listed Drop-in Anchor range includes five sizes: M6, M8, M10, M12 and M16. The table below compares the documented anchor length and thread length for each size, giving you a clear dimensional reference for bulk purchasing and specification-based enquiries.
Each row keeps the nominal size, anchor length and thread length together. This lets you identify the exact dimensional combination you want to include in a purchase enquiry rather than referring to the size alone.
| Size | Anchor Length (mm) | Thread Length (mm) |
|---|---|---|
| M6 | 25 | 11 |
| M8 | 30 | 14 |
| M10 | 40 | 17 |
| M12 | 50 | 20 |
| M16 | 65 | 25 |
The listed measurements are subject to tolerances wherever applicable. Keep the size and both length fields together when copying a specification into your purchasing documentation.
Size identifies the nominal metric size in the listed range. The comparison runs from M6 through M16, with M8, M10 and M12 between the two end sizes.
Anchor Length (mm) is the documented overall anchor-length field for each listed size. In this range, it increases from 25 mm for M6 to 65 mm for M16.
Thread Length (mm) records the documented threaded portion for each row. It increases from 11 mm for M6 to 25 mm for M16. Keeping this field separate from anchor length is important when a project specification or purchasing schedule names both dimensions.
These fields are dimensional information for product identification and comparison. They do not by themselves provide a load rating, installation torque, embedment requirement or other installation design value.
Start with the size stated in your project, fabrication or purchasing schedule. Then match it to the corresponding row in the table. For example, an enquiry for M10 should carry the M10 dimensional association: 40 mm anchor length and 17 mm thread length. An enquiry for M16 should identify 65 mm anchor length and 25 mm thread length.
This row-based approach helps prevent dimensions from being separated from their size during quotation, internal approval or order preparation. It is particularly useful when a bulk requirement contains more than one size: list each size as its own line and retain its associated anchor and thread lengths.
If your purchasing system uses item descriptions, the documented fields can be arranged in a consistent format such as Drop-in Anchor – M12 – 50 mm anchor length – 20 mm thread length. Applying the same structure to every line makes a multi-size enquiry easier to read and compare.
This guide is a size and dimension comparison for the listed Drop-in Anchor. It does not replace a project-specific technical specification or provide performance calculations. The table contains no load-capacity values, so it should not be used to select an anchor on the basis of a calculated load.
It also does not add installation recommendations. Anchor length and thread length are product fields that help identify the required item; they are not, on their own, a complete installation specification. Where your project documentation includes additional technical requirements, keep those requirements separate from this dimensional comparison.
For the documented product listing, you can also review the Drop-in Anchor product page when preparing your internal reference.
For a clear bulk enquiry, state the required Drop-in Anchor size and retain the matching anchor-length and thread-length fields from the table. If your requirement includes several sizes, present them as separate line items rather than combining the range into one description.
A precise dimensional reference gives your purchasing communication a consistent basis: the nominal size identifies the row, while the two length fields identify the documented dimensions associated with it. This keeps the enquiry focused on the listed catalogue information without introducing unsupported load or installation assumptions.
Send us your required sizes and quantities for a bulk quote.
The listed sizes are M6, M8, M10, M12 and M16.
The documented anchor lengths are 25 mm for M6, 30 mm for M8, 40 mm for M10, 50 mm for M12 and 65 mm for M16.
The documented thread lengths are 11 mm for M6, 14 mm for M8, 17 mm for M10, 20 mm for M12 and 25 mm for M16.
No. The comparison provides the listed size, anchor length and thread length. It does not provide load-capacity values, installation torque, embedment requirements or other installation design information.
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Ferry International — bulk anchor bolt manufacturer from Ghaziabad, U.P., since 1957. We produce ASTM & IS-compliant Shield Anchors, Through Bolts, Drop-in Anchors, J-Hook Anchors, Eye Hook Anchors, Brass Anchors, and pipe clamps for construction, oil & gas, power, marine, solar, and infrastructure. Bulk RFQs only. ISO 9001:2015 | ZED Bronze | UDYAM Registered.
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