Botanical Mounting & Preservation Pins

SKU: 33414-6

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Use corrosion-resistant insect pins for mounting delicate plant specimens in herbaria or botanical studies. Secure leaves and flowers safely without tearing or rusting.

These finely made black enamelled steel insect pins are an economical way for mounting and preserving botanical specimens such as leaves, petals, and seed pods. Their slender, polished shafts penetrate stems and veins cleanly without crushing or tearing tissue, while their corrosion resistance ensures long-term durability under humid drying conditions. Whether used in herbarium sheets, botanical display boards, or student plant collections, these pins help maintain the natural form of fragile specimens during pressing and drying.

We've offered Entosphinx black insect pins since 2005 with a delivered cost that beats "free" shipping!

Google Reviews, click on the names to read the entire review:
Keith U.: ...insect pinning equipment...received quicker than expected. I will order from them again.
Steven P.: Indigo...black steel pins for...wood scale flying models, very sharp...Great quality products!
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Experimental Design/Demonstration Idea

"Comparing Mounting Techniques for Plant Preservation"
Use a single flower species and test three mounting methods: adhesive tape, paper straps, and steel insect pins. After drying, compare color retention, petal distortion, and ease of removal for microscopic examination. Discuss how pin material and placement affect preservation quality.

Best Practices for Botanical Use of Insect Pins

Step Recommendation
Before mounting Blot excess moisture; avoid pressing wet specimens directly to prevent fungal growth.
Pin placement Insert through thicker vein or stem areas to support shape without visible damage.
Drying process Use ventilated presses or silica gel; ensure metal parts stay dry.
Archival preservation Store in acid-free paper with controlled humidity below 50% RH.
Long-term documentation Label with specimen ID, collection site, and date for research or display.

Learning Outcomes: Key Features

Discipline Learning Outcome / Application
Botany / Ecology Understand techniques for preserving small floral or leaf structures with minimal distortion using stainless insect pins.
Museum / Herbarium Science Demonstrate correct pinning methods for long-term botanical specimen stability and documentation.
Art / Design Use insect pins for delicate floral compositions, dried arrangements, or natural artwork that retains fine structural detail.

Experimental Design / Classroom Activity

Objective Procedure Observation / Discussion
Compare specimen preservation with and without pin stabilization.
  1. Select 3 similar small flowers or leaves.
  2. Mount one with insect pins, one with tape, and one unmounted.
  3. Allow all to air dry for 5–7 days.
 Discuss differences in shrinkage, tearing, and shape retention. Identify why fine insect pins produce cleaner results.

Some blogs that may be of interest:

Insect Pins for Art, Nozzles, Puppetry...Even Insects. Our pins ensured Sponge Bob's pants didn't fall down!

Pinhole Photography & Eye Evolution. See also pinhole camera examples with a #0 insect pin & a #1 insect pin.

See our blog Bioquip Inc. Products Catalog-Indigo Instruments Equivalents may be a useful reference for some.

Related information or images
Black Enamel Insect Pin #6

Black Enamel Insect Pin #6

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