46 CFR § 59.10-15 - Rivets and staybolts.

---
identifier: "/us/cfr/t46/s59.10-15"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 59.10-15 - Rivets and staybolts."
title_number: 46
title_name: "Shipping"
section_number: "59.10-15"
section_name: "Rivets and staybolts."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "F"
subchapter_name: "MARINE ENGINEERING"
part_number: "59"
part_name: "REPAIRS TO BOILERS, PRESSURE VESSELS, AND APPURTENANCES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 3306, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 227; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.3."
regulatory_source: "CGFR 68-82, 33 FR 18887, Dec. 18, 1968, as amended by USCG-2020-0634, 89 FR 50183, June 12, 2024, unless otherwise noted."
cfr_part: "59"
---


# 59.10-15 Rivets and staybolts.

(a) It is not permitted to reinforce or build up by welding the heads of rivets or staybolts that have deteriorated. Such rivets or staybolts must be replaced. The seal welding of rivet heads to secure tightness is prohibited.

(b) Where leaks develop around staybolts which are otherwise in good condition, the nuts may be replaced with a beveled collar formed around the end of the stay by means of welding. In such cases, the depth of collar measured on the stay and the width measured on the plate, must be equal to one-half the diameter of the staybolt.