British Standards Institution

Source:: CEN
Committee:: ACE/12 - Aerospace fasteners and fastening systems
Categories:: Bolts, screws, studs
Comment period start date:: 31/07/2025
Comment period end date:: 23/09/2025
Number of comments:: 0

Comment by:

23rd Sep

Scope

This document specifies the requirements for offset cruciform recess pan head screws with relieved shank and long thread in heat resisting steel FE-PA92HT, silver plated, tensile strength class 900 MPa at room temperature. The maximum test temperature of the material is 650 °C.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

23/06/2025

3. Public Comments

Public Comments start date:

31/07/2025

Public Comments end date:

23/09/2025

4. Comment Resolution

Comment Resolution start date:

14/12/2026

5. Approval

6. Publication

Publication start date:

23/03/2027

Learn more about the standards development process

Standards Development

BS EN 3636 EN 3636 Aerospace series. Screws, reduced pan head, offset cruciform recess, relieved shank, long thread, in heat resisting steel FEPA92HT (A286), silver plated. Classification: 900 MPa/650 °C

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