SuperGrab 4015 Prussic Rope Grab, 2-Pack
The Super Anchor 4015 SuperGrab is a prussic style rope grab for all SAS 5/8 inch synthetic lifelines, built from 7/16 inch nylon and polyester cord with a 7,400 lb tensile strength and a maximum deceleration of 12 inches when used with a personal energy absorber. The prussic knot grips the lifeline in both directions, keeps gripping when wet or frozen, and flexes with the rope instead of biting into it.
What is included: 2 SuperGrab 4015 rope grabs, each with a protective hand grab cover. The cover doubles as a fall indicator, and the SuperGrab is one of only two SAS rope grabs approved for reverse rigging, with the grab at the anchorage end of the lifeline. Compliant with OSHA 1926.502 and supported by a Department of Labor compliance letter.

Who Needs This Product
Roofers, framers, and solar crews working on vertical lifelines who want a rope grab that will not snag, scratch metal roofing, or freeze up in bad weather. Each worker connects the SuperGrab to a full body harness with a personal energy absorber and a class 1 connector, on a lifeline anchored to an OSHA or ANSI compliant anchorage. The SuperGrab is also the grab of choice for reverse rigging, with the rope grab attached to the anchor point and the excess lifeline eliminated behind the worker. It is not a standalone device and must be used as part of a complete personal fall arrest system.
Features
Prussic knot reliability
The most reliable means of gripping a lifeline, the prussic maintains its hold even when wet or frozen and stays flexible as it expands and contracts with the rope.
Dual direction locking
A subtle force in the ascending or descending direction initiates the lock with only a few inches of slip under extreme force.
Fall indicator hand grab
The protective hand grab cover breaks when subjected to a free fall, giving the next user visible evidence of impact loading.
Reverse rigging approved
Only the SuperGrab and ValueGrab are rated for reverse rigging, with the grab at the anchorage end per the SAS Reverse Rigging Manual.
Metal roof friendly
The soft prussic cord resists snagging and will not scratch standing seam or other metal roofing surfaces.
Simple position adjustment
Hold the wraps and pull the lifeline in the opposite direction to slide the grab to the desired working position.
Technical Specifications
| Model | 4015 SuperGrab |
|---|---|
| Package | 2-pack |
| Type | Prussic (non-mechanical) rope grab, captive |
| Prussic Cord | 7/16 inch nylon and polyester |
| Tensile Strength | 7,400 lb average |
| Locking | Dual direction |
| Maximum Deceleration | 12 inches, requires a personal energy absorber |
| Lifeline Compatibility | All SAS 5/8 inch lifelines: Value 3-strand, Maxima, Deluxe 12-strand, X-Line |
| Connector | Class 1 carabiner or snaphook with 3,600 lb gate strength; carabiner recommended |
| Grab Knot | 6 wraps required, adjusted snug around the lifeline |
| Fall Indicator | Hand grab cover breaks when subjected to a free fall |
| Limiter Knot | Required, tied approximately 12 inches from the lifeline end |
| Compliance | OSHA 1926.502; Department of Labor compliance letter |
Never grab the lifeline above the rope grab, or the rope grab itself, during a fall. Attach the SuperGrab to the harness only through a personal energy absorber or specified connecting component, never directly to the dorsal or side D-ring. Do not apply lubricants to any rope grab, and always tie a limiter knot near the lifeline end to prevent the grab from sliding off the rope.
Compliance Standards
OSHA 1926.502
Meets federal construction fall protection criteria for personal fall arrest system components.
Dept. of Labor Letter
SuperGrab and ValueGrab prussic rope grabs are supported by a Department of Labor compliance letter.
ANSI Z359.12 Connectors
Pairs with class 1 snaphooks and carabiners with 3,600 lb gate strength per ANSI Z359.12-2009 and CSA Z259.12-11.
CSA Certified Lifelines
SAS 3-strand, 12-strand, X-Line, and Maxima lifelines carry CSA RMRP and XLI certifications for use with the SuperGrab.
Typical Applications
Installation Overview
Full rigging figures, function tests, and the reverse rigging addendum are in the manuals linked below. The basics:
- Attach the lifeline A-end to an OSHA or ANSI compliant anchorage device with a class 1 connector.
- Confirm the SuperGrab has 6 full wraps around the lifeline, adjusted snug.
- Connect a class 1 carabiner or snaphook through the SuperGrab attachment point to your personal energy absorber, and the absorber to the harness dorsal D-ring.
- Tie a limiter knot approximately 12 inches from the lifeline B-end to prevent unintentional disengagement.
- Adjust working position by holding the wraps and pulling the lifeline in the opposite direction.
- Perform the lock test before each use: the grab knot must not move when loaded from the A-end, and must move easily when held open.
Inspection and Retirement
Inspect before installation and each use, with documented annual inspections. Remove the equipment from service when any of the following apply:
- The hand grab cover is cracked or screws are missing.
- Prussic strands are cut, hocked, or heat damaged.
- Fewer than 6 rope wraps are present; add wraps as needed before use.
- The grab fails the locking test or moves under load.
- PID or inspection labels are missing.
- The grab was subjected to a free fall.
Tag equipment removed from service to prevent further use until inspected by a qualified or competent person.
Frequently Asked Questions
Super Anchor 4015 Submittals and Documentation
Rope Grabs Instruction/Specification Manual (PDF)Rope grab types, performance specifications, function tests, and inspection requirements for SAS 5/8 inch lifelines. SAS Synthetic Lifelines Manual 05-2024 (PDF)Lifeline model specifications, rope grab compatibility, limiter knot requirements, lock tests, and length of fall calculations. Lifelines Compatibility with Rope Grabs (PDF)Standard and reverse rigging diagrams, lifeline material specifications, and rope grab pairing table. Lifeline Reverse Rigging Manual 2015 (PDF)Reverse rigging instructions, PPE requirements, and compatibility table for SuperGrab and ValueGrab rope grabs. Super Anchor Warranty and Compliance Statement (PDF)Manufacturer warranty terms and compliance statement for Super Anchor Safety products.Compatible and Related Products
- Super Anchor 4020 3-Strand Value Lifeline. 5/8 inch lifeline ready for the SuperGrab in 25 to 100 ft lengths.
- Super Anchor 4021-50V Lifeline + ValueGrab Combo. 50 ft lifeline with a factory supplied prussic rope grab.
- Super Anchor 6101GH Deluxe Harness. Full body harness for the lifeline and rope grab system.
- Super Anchor RS-10 2813 Roof Anchors. Permanent retrofit anchors for the lifeline A-end.
Building a Vertical Lifeline System?
Send us your roof pitch, lifeline lengths, and crew size and we will pair SuperGrabs, lifelines, absorbers, and anchors into one order with accurate freight, based on the delivery location.
Call 863-703-4522 to talk to a fall protection specialist.
Super Anchor Safety Manufacturer Warranty
Super Anchor Safety (SAS) warrants to the purchaser that all products are free from defect in material and workmanship at the time of shipment. This warranty is limited to product replacement for a period of one (1) year from the date of installation or use by the owner, provided that this period shall not exceed two (2) years from the date of shipment. This warranty only covers defects in material and workmanship. It does not cover conditions resulting from normal wear, neglect, abuse, or accident. This product warranty does not cover oxidation of zinc, dacromet, or powder coatings used on permanent and temporary anchors that results from connector abrasion unless the coating can be shown to be defective at the time of purchase. This warranty is non-transferable. Any unused defective product will be replaced at no charge by returning the product to Super Anchor Safety or to the distributor the product was purchased from.
Permanent Anchor Warranty
Super Anchor Safety warrants to the purchaser that all anchors sold as a permanent fixture with Hot Dip Galvanizing, Stainless Steel, and Thermo-Plastic finishes are fully warranted against failure due to defects in materials or workmanship for a period of five (5) years from the date of initial installation. SAS does not warranty the installation or flashing system used to waterproof the anchors. The SAS factory warranty is void if the product has been modified or has not been used in accordance with SAS specifications and instructions for that product. Anchors that have been removed from service due to re-roofing or remodel of the structure they were originally attached to must be inspected by an SAS factory representative or a competent person before being reinstalled.
See the Super Anchor Warranty and Compliance Statement (PDF) for the full manufacturer document.
