ASTM WK69908

    Revision of C1861 - 18 Standard Specification for Lathing and Furring Accessories, and Fasteners, for Interior and Exterior Portland Cement-Based Plaster

    (What is a Work Item?)

    Active Standard: C1861 - 18

    Developed by Subcommittee: C11.02 | Committee C11 | Contact Staff Manager



    adhesive; cement plaster; casing bead; cold-rolled channel furring; control joint; corner reinforcement; drainage screed; expansion joint; fastener; furring accessory; lathing accessory; nail; screw; staple; weep screed;;


    Rationale: Various revisions to clarify fastener staple specifications with the fastener staple reference standard indicated and remove obsolete information. Specifically, ballot item: 1.Harmonizes various fastenerstaple dimensional requirements to conform with the ir respective product reference standards and provides minor editorial revisions for clarity. Ballot item deletes barbed and adds ring shank roofing nails.Barbed roofing nails are no longer available. The additional structural characteristics of ring shank over smooth shank nails has been verified by engineering analysis as necessary. Ballot item deletes barbed and adds ring shank roofing nails. 12d nails are currently specified in C1063 for hangers (not lathing or lathing accessories) and are available conforming to ASTM Specification F1667 but are not currently a specified fastener in C1861. Ballot item adds 12d nails. 2.Adds lathing staple requirement specification to beas 16 gage minimum, not currently specified in C1063. 3.Adds hanger wire staple requirements as 9 gage staples, currently as specified in C1063 but not in C1861 4.Adds dimensional penetration criteria for staple penetration into framing members for a clear description of requirements to assist in selecting correct fastener lengths, which are condition dependent.

    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Jeff Bowlsby


    C11 (20-02)

    Ballot Item Approved as C1861-2020 and Pending Publication